Flights from Houston to Portugal (IAH to PT)

Discover more affordable routes and cheaper dates from Houston to Portugal (IAH to PT) within a date range.

⭐ Search by country or region to discover more affordable routes, like Netherlands → Italy or Europe → South East Asia.

Results Quantity

Cabin Bags

Checked Bags

Max Budget

US$

Max Duration

Hours

Max Layover

Hours

Departure Time

Connections

Select Airlines

Loading…

US$857

5:35pm - 9:20am
Mon Jun 9th 2025

33h 45m
Houston (IAH) → Lisbon (LIS)

2 Stops

11:25am - 1:20pm
Thu Jun 19th 2025

31h 55m
Lisbon (LIS) → Houston (IAH)

2 Stops

Mon Jun 9th 2025 United Airlines · UA 1017 Depart at 5:35pm from Houston (IAH) Fly for 3h 24m Arrive at 9:59pm in New York (LGA)

Layover in New York for 9h 6m

Tue Jun 10th 2025 United Airlines · UA 8431 Depart at 7:05am from New York (LGA) Fly for 1h 30m Arrive at 8:35am in Montreal (YUL)

Layover in Montreal for 13h 0m

Tue Jun 10th 2025 United Airlines · UA 8090 Depart at 9:35pm from Montreal (YUL) Fly for 6h 45m Arrive at 9:20am in Lisbon (LIS)

Stay in Lisbon for 8 nights

Thu Jun 19th 2025 United Airlines · UA 8089 Depart at 11:25am from Lisbon (LIS) Fly for 7h 30m Arrive at 1:55pm in Montreal (YUL)

Layover in Montreal for 18h 35m

Fri Jun 20th 2025 United Airlines · UA 8107 Depart at 8:30am from Montreal (YUL) Fly for 1h 48m Arrive at 10:18am in Washington, D.C. (DCA)

Layover in Washington, D.C. for 0h 47m

Fri Jun 20th 2025 United Airlines · UA 1457 Depart at 11:05am from Washington, D.C. (DCA) Fly for 3h 15m Arrive at 1:20pm in Houston (IAH)
US$861

7:20am - 9:20am
Mon Jun 23rd 2025

20h 0m
Houston (IAH) → Lisbon (LIS)

2 Stops

11:25am - 7:41pm
Thu Jul 3rd 2025

14h 16m
Lisbon (LIS) → Houston (IAH)

1 Stop

Mon Jun 23rd 2025 Air Canada · AC 590 Depart at 7:20am from Houston (IAH) Fly for 3h 14m Arrive at 11:34am in Toronto (YYZ)

Layover in Toronto for 5h 26m

Mon Jun 23rd 2025 Air Canada · AC 894 Depart at 5:00pm from Toronto (YYZ) Fly for 1h 21m Arrive at 6:21pm in Montreal (YUL)

Layover in Montreal for 3h 14m

Mon Jun 23rd 2025 Air Canada · AC 812 Depart at 9:35pm from Montreal (YUL) Fly for 6h 45m Arrive at 9:20am in Lisbon (LIS)

Stay in Lisbon for 9 nights

Thu Jul 3rd 2025 Air Canada · AC 813 Depart at 11:25am from Lisbon (LIS) Fly for 7h 30m Arrive at 1:55pm in Montreal (YUL)

Layover in Montreal for 2h 40m

Thu Jul 3rd 2025 Air Canada · AC 581 Depart at 4:35pm from Montreal (YUL) Fly for 4h 6m Arrive at 7:41pm in Houston (IAH)
US$863

7:20am - 11:10am
Sun Jun 22nd 2025

21h 50m
Houston (IAH) → Lisbon (LIS)

1 Stop

11:25am - 7:41pm
Tue Jul 1st 2025

14h 16m
Lisbon (LIS) → Houston (IAH)

1 Stop

Sun Jun 22nd 2025 Air Canada · AC 590 Depart at 7:20am from Houston (IAH) Fly for 3h 14m Arrive at 11:34am in Toronto (YYZ)

Layover in Toronto for 11h 21m

Sun Jun 22nd 2025 Air Canada · AC 810 Depart at 10:55pm from Toronto (YYZ) Fly for 7h 15m Arrive at 11:10am in Lisbon (LIS)

Stay in Lisbon for 8 nights

Tue Jul 1st 2025 Air Canada · AC 813 Depart at 11:25am from Lisbon (LIS) Fly for 7h 30m Arrive at 1:55pm in Montreal (YUL)

Layover in Montreal for 2h 40m

Tue Jul 1st 2025 Air Canada · AC 581 Depart at 4:35pm from Montreal (YUL) Fly for 4h 6m Arrive at 7:41pm in Houston (IAH)
US$865

8:24pm - 8:20am
Mon Jun 9th 2025

29h 56m
Houston (IAH) → Lisbon (LIS)

1 Stop

11:25am - 1:20pm
Thu Jun 19th 2025

31h 55m
Lisbon (LIS) → Houston (IAH)

2 Stops

Mon Jun 9th 2025 United Airlines · UA 1444 Depart at 8:24pm from Houston (IAH) Fly for 3h 36m Arrive at 1:00am in New York (EWR)

Layover in New York for 19h 25m

Tue Jun 10th 2025 United Airlines · UA 64 Depart at 8:25pm from New York (EWR) Fly for 6h 55m Arrive at 8:20am in Lisbon (LIS)

Stay in Lisbon for 8 nights

Thu Jun 19th 2025 United Airlines · UA 8089 Depart at 11:25am from Lisbon (LIS) Fly for 7h 30m Arrive at 1:55pm in Montreal (YUL)

Layover in Montreal for 18h 35m

Fri Jun 20th 2025 United Airlines · UA 8107 Depart at 8:30am from Montreal (YUL) Fly for 1h 48m Arrive at 10:18am in Washington, D.C. (DCA)

Layover in Washington, D.C. for 0h 47m

Fri Jun 20th 2025 United Airlines · UA 1457 Depart at 11:05am from Washington, D.C. (DCA) Fly for 3h 15m Arrive at 1:20pm in Houston (IAH)
US$866

2:25pm - 8:20am
Tue Jun 10th 2025

11h 55m
Houston (IAH) → Lisbon (LIS)

1 Stop

11:25am - 7:36pm
Tue Jun 24th 2025

14h 11m
Lisbon (LIS) → Houston (IAH)

1 Stop

Tue Jun 10th 2025 United Airlines · UA 2608 Depart at 2:25pm from Houston (IAH) Fly for 3h 46m Arrive at 7:11pm in New York (EWR)

Layover in New York for 1h 14m

Tue Jun 10th 2025 United Airlines · UA 64 Depart at 8:25pm from New York (EWR) Fly for 6h 55m Arrive at 8:20am in Lisbon (LIS)

Stay in Lisbon for 13 nights

Tue Jun 24th 2025 Air Canada · AC 813 Depart at 11:25am from Lisbon (LIS) Fly for 7h 30m Arrive at 1:55pm in Montreal (YUL)

Layover in Montreal for 2h 35m

Tue Jun 24th 2025 Air Canada · AC 581 Depart at 4:30pm from Montreal (YUL) Fly for 4h 6m Arrive at 7:36pm in Houston (IAH)
US$866

7:35am - 9:20am
Tue Jun 10th 2025

19h 45m
Houston (IAH) → Lisbon (LIS)

2 Stops

11:25am - 7:36pm
Wed Jun 18th 2025

14h 11m
Lisbon (LIS) → Houston (IAH)

1 Stop

Tue Jun 10th 2025 United Airlines · UA 783 Depart at 7:35am from Houston (IAH) Fly for 1h 2m Arrive at 8:37am in Austin (AUS)

Layover in Austin for 1h 23m

Tue Jun 10th 2025 United Airlines · UA 8305 Depart at 10:00am from Austin (AUS) Fly for 3h 58m Arrive at 2:58pm in Montreal (YUL)

Layover in Montreal for 6h 37m

Tue Jun 10th 2025 United Airlines · UA 8090 Depart at 9:35pm from Montreal (YUL) Fly for 6h 45m Arrive at 9:20am in Lisbon (LIS)

Stay in Lisbon for 7 nights

Wed Jun 18th 2025 Air Canada · AC 813 Depart at 11:25am from Lisbon (LIS) Fly for 7h 30m Arrive at 1:55pm in Montreal (YUL)

Layover in Montreal for 2h 35m

Wed Jun 18th 2025 Air Canada · AC 581 Depart at 4:30pm from Montreal (YUL) Fly for 4h 6m Arrive at 7:36pm in Houston (IAH)
US$866

6:00am - 8:20am
Tue Jun 10th 2025

20h 20m
Houston (IAH) → Lisbon (LIS)

1 Stop

11:25am - 7:56pm
Tue Jun 17th 2025

14h 31m
Lisbon (LIS) → Houston (IAH)

1 Stop

Tue Jun 10th 2025 United Airlines · UA 1797 Depart at 6:00am from Houston (IAH) Fly for 3h 34m Arrive at 10:34am in New York (EWR)

Layover in New York for 9h 51m

Tue Jun 10th 2025 United Airlines · UA 64 Depart at 8:25pm from New York (EWR) Fly for 6h 55m Arrive at 8:20am in Lisbon (LIS)

Stay in Lisbon for 6 nights

Tue Jun 17th 2025 Air Canada · AC 813 Depart at 11:25am from Lisbon (LIS) Fly for 7h 30m Arrive at 1:55pm in Montreal (YUL)

Layover in Montreal for 2h 35m

Tue Jun 17th 2025 Air Canada · AC 581 Depart at 4:30pm from Montreal (YUL) Fly for 4h 26m Arrive at 7:56pm in Houston (IAH)
US$867

7:59pm - 10:30am
Tue Jun 10th 2025

32h 31m
Houston (IAH) → Lisbon (LIS)

1 Stop

12:50pm - 11:15am
Wed Jun 25th 2025

28h 25m
Lisbon (LIS) → Houston (IAH)

1 Stop

Tue Jun 10th 2025 United Airlines · UA 1887 Depart at 7:59pm from Houston (IAH) Fly for 2h 52m Arrive at 11:51pm in Washington, D.C. (IAD)

Layover in Washington, D.C. for 22h 24m

Wed Jun 11th 2025 United Airlines · UA 942 Depart at 10:15pm from Washington, D.C. (IAD) Fly for 7h 15m Arrive at 10:30am in Lisbon (LIS)

Stay in Lisbon for 13 nights

Wed Jun 25th 2025 United Airlines · UA 8038 Depart at 12:50pm from Lisbon (LIS) Fly for 8h 15m Arrive at 4:05pm in Toronto (YYZ)

Layover in Toronto for 16h 40m

Thu Jun 26th 2025 United Airlines · UA 8350 Depart at 8:45am from Toronto (YYZ) Fly for 3h 30m Arrive at 11:15am in Houston (IAH)
US$867

7:59pm - 10:30am
Tue Jun 10th 2025

32h 31m
Houston (IAH) → Lisbon (LIS)

1 Stop

12:50pm - 11:15am
Thu Jun 19th 2025

28h 25m
Lisbon (LIS) → Houston (IAH)

1 Stop

Tue Jun 10th 2025 United Airlines · UA 1887 Depart at 7:59pm from Houston (IAH) Fly for 2h 52m Arrive at 11:51pm in Washington, D.C. (IAD)

Layover in Washington, D.C. for 22h 24m

Wed Jun 11th 2025 United Airlines · UA 942 Depart at 10:15pm from Washington, D.C. (IAD) Fly for 7h 15m Arrive at 10:30am in Lisbon (LIS)

Stay in Lisbon for 7 nights

Thu Jun 19th 2025 United Airlines · UA 8038 Depart at 12:50pm from Lisbon (LIS) Fly for 8h 15m Arrive at 4:05pm in Toronto (YYZ)

Layover in Toronto for 16h 40m

Fri Jun 20th 2025 United Airlines · UA 8350 Depart at 8:45am from Toronto (YYZ) Fly for 3h 30m Arrive at 11:15am in Houston (IAH)
US$867

7:59pm - 10:30am
Sat Jun 14th 2025

32h 31m
Houston (IAH) → Lisbon (LIS)

1 Stop

12:50pm - 11:15am
Fri Jun 27th 2025

28h 25m
Lisbon (LIS) → Houston (IAH)

1 Stop

Sat Jun 14th 2025 United Airlines · UA 1887 Depart at 7:59pm from Houston (IAH) Fly for 2h 52m Arrive at 11:51pm in Washington, D.C. (IAD)

Layover in Washington, D.C. for 22h 24m

Sun Jun 15th 2025 United Airlines · UA 942 Depart at 10:15pm from Washington, D.C. (IAD) Fly for 7h 15m Arrive at 10:30am in Lisbon (LIS)

Stay in Lisbon for 11 nights

Fri Jun 27th 2025 United Airlines · UA 8038 Depart at 12:50pm from Lisbon (LIS) Fly for 8h 15m Arrive at 4:05pm in Toronto (YYZ)

Layover in Toronto for 16h 40m

Sat Jun 28th 2025 United Airlines · UA 8350 Depart at 8:45am from Toronto (YYZ) Fly for 3h 30m Arrive at 11:15am in Houston (IAH)
US$868

2:25pm - 8:20am
Tue Jun 10th 2025

11h 55m
Houston (IAH) → Lisbon (LIS)

1 Stop

11:25am - 7:36pm
Wed Jun 25th 2025

14h 11m
Lisbon (LIS) → Houston (IAH)

1 Stop

Tue Jun 10th 2025 United Airlines · UA 2608 Depart at 2:25pm from Houston (IAH) Fly for 3h 46m Arrive at 7:11pm in New York (EWR)

Layover in New York for 1h 14m

Tue Jun 10th 2025 United Airlines · UA 64 Depart at 8:25pm from New York (EWR) Fly for 6h 55m Arrive at 8:20am in Lisbon (LIS)

Stay in Lisbon for 14 nights

Wed Jun 25th 2025 United Airlines · UA 8089 Depart at 11:25am from Lisbon (LIS) Fly for 7h 30m Arrive at 1:55pm in Montreal (YUL)

Layover in Montreal for 2h 35m

Wed Jun 25th 2025 United Airlines · UA 8706 Depart at 4:30pm from Montreal (YUL) Fly for 4h 6m Arrive at 7:36pm in Houston (IAH)
US$868

2:25pm - 8:20am
Tue Jun 10th 2025

11h 55m
Houston (IAH) → Lisbon (LIS)

1 Stop

11:25am - 7:41pm
Thu Jul 3rd 2025

14h 16m
Lisbon (LIS) → Houston (IAH)

1 Stop

Tue Jun 10th 2025 United Airlines · UA 2608 Depart at 2:25pm from Houston (IAH) Fly for 3h 46m Arrive at 7:11pm in New York (EWR)

Layover in New York for 1h 14m

Tue Jun 10th 2025 United Airlines · UA 64 Depart at 8:25pm from New York (EWR) Fly for 6h 55m Arrive at 8:20am in Lisbon (LIS)

Stay in Lisbon for 22 nights

Thu Jul 3rd 2025 United Airlines · UA 8089 Depart at 11:25am from Lisbon (LIS) Fly for 7h 30m Arrive at 1:55pm in Montreal (YUL)

Layover in Montreal for 2h 40m

Thu Jul 3rd 2025 United Airlines · UA 8706 Depart at 4:35pm from Montreal (YUL) Fly for 4h 6m Arrive at 7:41pm in Houston (IAH)
US$868

7:20am - 11:10am
Tue Jun 10th 2025

21h 50m
Houston (IAH) → Lisbon (LIS)

1 Stop

11:25am - 7:56pm
Tue Jun 17th 2025

14h 31m
Lisbon (LIS) → Houston (IAH)

1 Stop

Tue Jun 10th 2025 United Airlines · UA 8541 Depart at 7:20am from Houston (IAH) Fly for 3h 14m Arrive at 11:34am in Toronto (YYZ)

Layover in Toronto for 11h 21m

Tue Jun 10th 2025 United Airlines · UA 8655 Depart at 10:55pm from Toronto (YYZ) Fly for 7h 15m Arrive at 11:10am in Lisbon (LIS)

Stay in Lisbon for 6 nights

Tue Jun 17th 2025 Air Canada · AC 813 Depart at 11:25am from Lisbon (LIS) Fly for 7h 30m Arrive at 1:55pm in Montreal (YUL)

Layover in Montreal for 2h 35m

Tue Jun 17th 2025 Air Canada · AC 581 Depart at 4:30pm from Montreal (YUL) Fly for 4h 26m Arrive at 7:56pm in Houston (IAH)
US$870

4:55pm - 10:30am
Wed Jun 11th 2025

11h 35m
Houston (IAH) → Lisbon (LIS)

1 Stop

11:25am - 7:36pm
Wed Jun 25th 2025

14h 11m
Lisbon (LIS) → Houston (IAH)

1 Stop

Wed Jun 11th 2025 United Airlines · UA 1788 Depart at 4:55pm from Houston (IAH) Fly for 3h 7m Arrive at 9:02pm in Washington, D.C. (IAD)

Layover in Washington, D.C. for 1h 13m

Wed Jun 11th 2025 United Airlines · UA 942 Depart at 10:15pm from Washington, D.C. (IAD) Fly for 7h 15m Arrive at 10:30am in Lisbon (LIS)

Stay in Lisbon for 13 nights

Wed Jun 25th 2025 United Airlines · UA 8089 Depart at 11:25am from Lisbon (LIS) Fly for 7h 30m Arrive at 1:55pm in Montreal (YUL)

Layover in Montreal for 2h 35m

Wed Jun 25th 2025 United Airlines · UA 8706 Depart at 4:30pm from Montreal (YUL) Fly for 4h 6m Arrive at 7:36pm in Houston (IAH)
US$870

4:55pm - 10:30am
Wed Jun 11th 2025

11h 35m
Houston (IAH) → Lisbon (LIS)

1 Stop

11:25am - 7:41pm
Thu Jul 3rd 2025

14h 16m
Lisbon (LIS) → Houston (IAH)

1 Stop

Wed Jun 11th 2025 United Airlines · UA 1788 Depart at 4:55pm from Houston (IAH) Fly for 3h 7m Arrive at 9:02pm in Washington, D.C. (IAD)

Layover in Washington, D.C. for 1h 13m

Wed Jun 11th 2025 United Airlines · UA 942 Depart at 10:15pm from Washington, D.C. (IAD) Fly for 7h 15m Arrive at 10:30am in Lisbon (LIS)

Stay in Lisbon for 21 nights

Thu Jul 3rd 2025 United Airlines · UA 8089 Depart at 11:25am from Lisbon (LIS) Fly for 7h 30m Arrive at 1:55pm in Montreal (YUL)

Layover in Montreal for 2h 40m

Thu Jul 3rd 2025 United Airlines · UA 8706 Depart at 4:35pm from Montreal (YUL) Fly for 4h 6m Arrive at 7:41pm in Houston (IAH)
US$870

4:55pm - 10:30am
Mon Jun 23rd 2025

11h 35m
Houston (IAH) → Lisbon (LIS)

1 Stop

11:25am - 7:41pm
Thu Jul 3rd 2025

14h 16m
Lisbon (LIS) → Houston (IAH)

1 Stop

Mon Jun 23rd 2025 United Airlines · UA 1788 Depart at 4:55pm from Houston (IAH) Fly for 3h 7m Arrive at 9:02pm in Washington, D.C. (IAD)

Layover in Washington, D.C. for 1h 13m

Mon Jun 23rd 2025 United Airlines · UA 942 Depart at 10:15pm from Washington, D.C. (IAD) Fly for 7h 15m Arrive at 10:30am in Lisbon (LIS)

Stay in Lisbon for 9 nights

Thu Jul 3rd 2025 United Airlines · UA 8089 Depart at 11:25am from Lisbon (LIS) Fly for 7h 30m Arrive at 1:55pm in Montreal (YUL)

Layover in Montreal for 2h 40m

Thu Jul 3rd 2025 United Airlines · UA 8706 Depart at 4:35pm from Montreal (YUL) Fly for 4h 6m Arrive at 7:41pm in Houston (IAH)
US$870

4:55pm - 10:30am
Wed Jun 11th 2025

11h 35m
Houston (IAH) → Lisbon (LIS)

1 Stop

11:25am - 7:41pm
Tue Jul 1st 2025

14h 16m
Lisbon (LIS) → Houston (IAH)

1 Stop

Wed Jun 11th 2025 United Airlines · UA 1788 Depart at 4:55pm from Houston (IAH) Fly for 3h 7m Arrive at 9:02pm in Washington, D.C. (IAD)

Layover in Washington, D.C. for 1h 13m

Wed Jun 11th 2025 United Airlines · UA 942 Depart at 10:15pm from Washington, D.C. (IAD) Fly for 7h 15m Arrive at 10:30am in Lisbon (LIS)

Stay in Lisbon for 19 nights

Tue Jul 1st 2025 United Airlines · UA 8089 Depart at 11:25am from Lisbon (LIS) Fly for 7h 30m Arrive at 1:55pm in Montreal (YUL)

Layover in Montreal for 2h 40m

Tue Jul 1st 2025 United Airlines · UA 8706 Depart at 4:35pm from Montreal (YUL) Fly for 4h 6m Arrive at 7:41pm in Houston (IAH)
US$870

2:25pm - 8:20am
Tue Jun 10th 2025

11h 55m
Houston (IAH) → Lisbon (LIS)

1 Stop

11:25am - 7:36pm
Thu Jun 19th 2025

14h 11m
Lisbon (LIS) → Houston (IAH)

1 Stop

Tue Jun 10th 2025 United Airlines · UA 2608 Depart at 2:25pm from Houston (IAH) Fly for 3h 46m Arrive at 7:11pm in New York (EWR)

Layover in New York for 1h 14m

Tue Jun 10th 2025 United Airlines · UA 64 Depart at 8:25pm from New York (EWR) Fly for 6h 55m Arrive at 8:20am in Lisbon (LIS)

Stay in Lisbon for 8 nights

Thu Jun 19th 2025 United Airlines · UA 8089 Depart at 11:25am from Lisbon (LIS) Fly for 7h 30m Arrive at 1:55pm in Montreal (YUL)

Layover in Montreal for 2h 35m

Thu Jun 19th 2025 United Airlines · UA 8706 Depart at 4:30pm from Montreal (YUL) Fly for 4h 6m Arrive at 7:36pm in Houston (IAH)
US$870

2:25pm - 8:20am
Tue Jun 10th 2025

11h 55m
Houston (IAH) → Lisbon (LIS)

1 Stop

11:25am - 7:41pm
Tue Jul 1st 2025

14h 16m
Lisbon (LIS) → Houston (IAH)

1 Stop

Tue Jun 10th 2025 United Airlines · UA 2608 Depart at 2:25pm from Houston (IAH) Fly for 3h 46m Arrive at 7:11pm in New York (EWR)

Layover in New York for 1h 14m

Tue Jun 10th 2025 United Airlines · UA 64 Depart at 8:25pm from New York (EWR) Fly for 6h 55m Arrive at 8:20am in Lisbon (LIS)

Stay in Lisbon for 20 nights

Tue Jul 1st 2025 United Airlines · UA 8089 Depart at 11:25am from Lisbon (LIS) Fly for 7h 30m Arrive at 1:55pm in Montreal (YUL)

Layover in Montreal for 2h 40m

Tue Jul 1st 2025 United Airlines · UA 8706 Depart at 4:35pm from Montreal (YUL) Fly for 4h 6m Arrive at 7:41pm in Houston (IAH)
US$870

2:25pm - 8:20am
Mon Jun 23rd 2025

11h 55m
Houston (IAH) → Lisbon (LIS)

1 Stop

11:25am - 7:41pm
Thu Jul 3rd 2025

14h 16m
Lisbon (LIS) → Houston (IAH)

1 Stop

Mon Jun 23rd 2025 United Airlines · UA 2608 Depart at 2:25pm from Houston (IAH) Fly for 3h 46m Arrive at 7:11pm in New York (EWR)

Layover in New York for 1h 14m

Mon Jun 23rd 2025 United Airlines · UA 64 Depart at 8:25pm from New York (EWR) Fly for 6h 55m Arrive at 8:20am in Lisbon (LIS)

Stay in Lisbon for 9 nights

Thu Jul 3rd 2025 United Airlines · UA 8089 Depart at 11:25am from Lisbon (LIS) Fly for 7h 30m Arrive at 1:55pm in Montreal (YUL)

Layover in Montreal for 2h 40m

Thu Jul 3rd 2025 United Airlines · UA 8706 Depart at 4:35pm from Montreal (YUL) Fly for 4h 6m Arrive at 7:41pm in Houston (IAH)
US$870

10:00am - 10:30am
Wed Jun 11th 2025

18h 30m
Houston (IAH) → Lisbon (LIS)

1 Stop

11:25am - 7:41pm
Wed Jul 2nd 2025

14h 16m
Lisbon (LIS) → Houston (IAH)

1 Stop

Wed Jun 11th 2025 United Airlines · UA 1231 Depart at 10:00am from Houston (IAH) Fly for 3h 12m Arrive at 2:12pm in Washington, D.C. (IAD)

Layover in Washington, D.C. for 8h 3m

Wed Jun 11th 2025 United Airlines · UA 942 Depart at 10:15pm from Washington, D.C. (IAD) Fly for 7h 15m Arrive at 10:30am in Lisbon (LIS)

Stay in Lisbon for 20 nights

Wed Jul 2nd 2025 United Airlines · UA 8089 Depart at 11:25am from Lisbon (LIS) Fly for 7h 30m Arrive at 1:55pm in Montreal (YUL)

Layover in Montreal for 2h 40m

Wed Jul 2nd 2025 United Airlines · UA 8706 Depart at 4:35pm from Montreal (YUL) Fly for 4h 6m Arrive at 7:41pm in Houston (IAH)
US$870

7:20am - 11:10am
Tue Jun 10th 2025

21h 50m
Houston (IAH) → Lisbon (LIS)

1 Stop

12:50pm - 10:02pm
Wed Jul 2nd 2025

15h 12m
Lisbon (LIS) → Houston (IAH)

1 Stop

Tue Jun 10th 2025 Air Canada · AC 590 Depart at 7:20am from Houston (IAH) Fly for 3h 14m Arrive at 11:34am in Toronto (YYZ)

Layover in Toronto for 11h 21m

Tue Jun 10th 2025 Air Canada · AC 810 Depart at 10:55pm from Toronto (YYZ) Fly for 7h 15m Arrive at 11:10am in Lisbon (LIS)

Stay in Lisbon for 21 nights

Wed Jul 2nd 2025 Air Canada · AC 811 Depart at 12:50pm from Lisbon (LIS) Fly for 8h 15m Arrive at 4:05pm in Toronto (YYZ)

Layover in Toronto for 3h 25m

Wed Jul 2nd 2025 Air Canada · AC 595 Depart at 7:30pm from Toronto (YYZ) Fly for 3h 32m Arrive at 10:02pm in Houston (IAH)
US$870

7:20am - 11:10am
Wed Jun 18th 2025

21h 50m
Houston (IAH) → Lisbon (LIS)

1 Stop

12:50pm - 10:07pm
Fri Jun 27th 2025

15h 17m
Lisbon (LIS) → Houston (IAH)

1 Stop

Wed Jun 18th 2025 Air Canada · AC 590 Depart at 7:20am from Houston (IAH) Fly for 3h 14m Arrive at 11:34am in Toronto (YYZ)

Layover in Toronto for 11h 21m

Wed Jun 18th 2025 Air Canada · AC 810 Depart at 10:55pm from Toronto (YYZ) Fly for 7h 15m Arrive at 11:10am in Lisbon (LIS)

Stay in Lisbon for 8 nights

Fri Jun 27th 2025 Air Canada · AC 811 Depart at 12:50pm from Lisbon (LIS) Fly for 8h 15m Arrive at 4:05pm in Toronto (YYZ)

Layover in Toronto for 3h 30m

Fri Jun 27th 2025 Air Canada · AC 595 Depart at 7:35pm from Toronto (YYZ) Fly for 3h 32m Arrive at 10:07pm in Houston (IAH)
US$871

7:20am - 11:10am
Wed Jun 18th 2025

21h 50m
Houston (IAH) → Lisbon (LIS)

1 Stop

6:15am - 4:25pm
Thu Jun 26th 2025

16h 10m
Lisbon (LIS) → Houston (IAH)

1 Stop

Wed Jun 18th 2025 Air Canada · AC 590 Depart at 7:20am from Houston (IAH) Fly for 3h 14m Arrive at 11:34am in Toronto (YYZ)

Layover in Toronto for 11h 21m

Wed Jun 18th 2025 Air Canada · AC 810 Depart at 10:55pm from Toronto (YYZ) Fly for 7h 15m Arrive at 11:10am in Lisbon (LIS)

Stay in Lisbon for 6 nights

Thu Jun 26th 2025 United Airlines · UA 8957 Depart at 6:15am from Lisbon (LIS) Fly for 3h 5m Arrive at 10:20am in Munich (MUC)

Layover in Munich for 2h 0m

Thu Jun 26th 2025 United Airlines · UA 160 Depart at 12:20pm from Munich (MUC) Fly for 11h 5m Arrive at 4:25pm in Houston (IAH)
US$872

7:35am - 9:20am
Tue Jun 10th 2025

19h 45m
Houston (IAH) → Lisbon (LIS)

2 Stops

12:50pm - 10:07pm
Wed Jun 18th 2025

15h 17m
Lisbon (LIS) → Houston (IAH)

1 Stop

Tue Jun 10th 2025 United Airlines · UA 783 Depart at 7:35am from Houston (IAH) Fly for 1h 2m Arrive at 8:37am in Austin (AUS)

Layover in Austin for 1h 23m

Tue Jun 10th 2025 United Airlines · UA 8305 Depart at 10:00am from Austin (AUS) Fly for 3h 58m Arrive at 2:58pm in Montreal (YUL)

Layover in Montreal for 6h 37m

Tue Jun 10th 2025 United Airlines · UA 8090 Depart at 9:35pm from Montreal (YUL) Fly for 6h 45m Arrive at 9:20am in Lisbon (LIS)

Stay in Lisbon for 7 nights

Wed Jun 18th 2025 Air Canada · AC 811 Depart at 12:50pm from Lisbon (LIS) Fly for 8h 15m Arrive at 4:05pm in Toronto (YYZ)

Layover in Toronto for 3h 30m

Wed Jun 18th 2025 Air Canada · AC 595 Depart at 7:35pm from Toronto (YYZ) Fly for 3h 32m Arrive at 10:07pm in Houston (IAH)
US$872

7:20am - 11:10am
Wed Jun 18th 2025

21h 50m
Houston (IAH) → Lisbon (LIS)

1 Stop

11:25am - 7:41pm
Wed Jul 2nd 2025

14h 16m
Lisbon (LIS) → Houston (IAH)

1 Stop

Wed Jun 18th 2025 United Airlines · UA 8541 Depart at 7:20am from Houston (IAH) Fly for 3h 14m Arrive at 11:34am in Toronto (YYZ)

Layover in Toronto for 11h 21m

Wed Jun 18th 2025 United Airlines · UA 8655 Depart at 10:55pm from Toronto (YYZ) Fly for 7h 15m Arrive at 11:10am in Lisbon (LIS)

Stay in Lisbon for 13 nights

Wed Jul 2nd 2025 United Airlines · UA 8089 Depart at 11:25am from Lisbon (LIS) Fly for 7h 30m Arrive at 1:55pm in Montreal (YUL)

Layover in Montreal for 2h 40m

Wed Jul 2nd 2025 United Airlines · UA 8706 Depart at 4:35pm from Montreal (YUL) Fly for 4h 6m Arrive at 7:41pm in Houston (IAH)
US$872

7:20am - 11:10am
Tue Jun 17th 2025

21h 50m
Houston (IAH) → Lisbon (LIS)

1 Stop

11:25am - 7:41pm
Tue Jul 1st 2025

14h 16m
Lisbon (LIS) → Houston (IAH)

1 Stop

Tue Jun 17th 2025 United Airlines · UA 8541 Depart at 7:20am from Houston (IAH) Fly for 3h 14m Arrive at 11:34am in Toronto (YYZ)

Layover in Toronto for 11h 21m

Tue Jun 17th 2025 United Airlines · UA 8655 Depart at 10:55pm from Toronto (YYZ) Fly for 7h 15m Arrive at 11:10am in Lisbon (LIS)

Stay in Lisbon for 13 nights

Tue Jul 1st 2025 United Airlines · UA 8089 Depart at 11:25am from Lisbon (LIS) Fly for 7h 30m Arrive at 1:55pm in Montreal (YUL)

Layover in Montreal for 2h 40m

Tue Jul 1st 2025 United Airlines · UA 8706 Depart at 4:35pm from Montreal (YUL) Fly for 4h 6m Arrive at 7:41pm in Houston (IAH)
US$872

7:20am - 11:10am
Wed Jun 25th 2025

21h 50m
Houston (IAH) → Lisbon (LIS)

1 Stop

11:25am - 7:41pm
Thu Jul 3rd 2025

14h 16m
Lisbon (LIS) → Houston (IAH)

1 Stop

Wed Jun 25th 2025 United Airlines · UA 8541 Depart at 7:20am from Houston (IAH) Fly for 3h 14m Arrive at 11:34am in Toronto (YYZ)

Layover in Toronto for 11h 21m

Wed Jun 25th 2025 United Airlines · UA 8655 Depart at 10:55pm from Toronto (YYZ) Fly for 7h 15m Arrive at 11:10am in Lisbon (LIS)

Stay in Lisbon for 7 nights

Thu Jul 3rd 2025 United Airlines · UA 8089 Depart at 11:25am from Lisbon (LIS) Fly for 7h 30m Arrive at 1:55pm in Montreal (YUL)

Layover in Montreal for 2h 40m

Thu Jul 3rd 2025 United Airlines · UA 8706 Depart at 4:35pm from Montreal (YUL) Fly for 4h 6m Arrive at 7:41pm in Houston (IAH)
US$872

2:25pm - 8:20am
Tue Jun 10th 2025

11h 55m
Houston (IAH) → Lisbon (LIS)

1 Stop

6:15am - 4:25pm
Wed Jun 25th 2025

16h 10m
Lisbon (LIS) → Houston (IAH)

1 Stop

Tue Jun 10th 2025 United Airlines · UA 2608 Depart at 2:25pm from Houston (IAH) Fly for 3h 46m Arrive at 7:11pm in New York (EWR)

Layover in New York for 1h 14m

Tue Jun 10th 2025 United Airlines · UA 64 Depart at 8:25pm from New York (EWR) Fly for 6h 55m Arrive at 8:20am in Lisbon (LIS)

Stay in Lisbon for 13 nights

Wed Jun 25th 2025 United Airlines · UA 8957 Depart at 6:15am from Lisbon (LIS) Fly for 3h 5m Arrive at 10:20am in Munich (MUC)

Layover in Munich for 2h 0m

Wed Jun 25th 2025 United Airlines · UA 160 Depart at 12:20pm from Munich (MUC) Fly for 11h 5m Arrive at 4:25pm in Houston (IAH)
US$874

7:50am - 9:20am
Tue Jun 17th 2025

19h 30m
Houston (IAH) → Lisbon (LIS)

2 Stops

6:15am - 4:25pm
Thu Jun 26th 2025

16h 10m
Lisbon (LIS) → Houston (IAH)

1 Stop

Tue Jun 17th 2025 United Airlines · UA 567 Depart at 7:50am from Houston (IAH) Fly for 2h 56m Arrive at 10:46am in Chicago (ORD)

Layover in Chicago for 3h 54m

Tue Jun 17th 2025 United Airlines · UA 2370 Depart at 2:40pm from Chicago (ORD) Fly for 2h 19m Arrive at 5:59pm in Montreal (YUL)

Layover in Montreal for 3h 36m

Tue Jun 17th 2025 United Airlines · UA 8090 Depart at 9:35pm from Montreal (YUL) Fly for 6h 45m Arrive at 9:20am in Lisbon (LIS)

Stay in Lisbon for 7 nights

Thu Jun 26th 2025 United Airlines · UA 8957 Depart at 6:15am from Lisbon (LIS) Fly for 3h 5m Arrive at 10:20am in Munich (MUC)

Layover in Munich for 2h 0m

Thu Jun 26th 2025 United Airlines · UA 160 Depart at 12:20pm from Munich (MUC) Fly for 11h 5m Arrive at 4:25pm in Houston (IAH)
US$874

4:55pm - 10:30am
Wed Jun 11th 2025

11h 35m
Houston (IAH) → Lisbon (LIS)

1 Stop

6:15am - 4:25pm
Wed Jun 25th 2025

16h 10m
Lisbon (LIS) → Houston (IAH)

1 Stop

Wed Jun 11th 2025 United Airlines · UA 1788 Depart at 4:55pm from Houston (IAH) Fly for 3h 7m Arrive at 9:02pm in Washington, D.C. (IAD)

Layover in Washington, D.C. for 1h 13m

Wed Jun 11th 2025 United Airlines · UA 942 Depart at 10:15pm from Washington, D.C. (IAD) Fly for 7h 15m Arrive at 10:30am in Lisbon (LIS)

Stay in Lisbon for 12 nights

Wed Jun 25th 2025 United Airlines · UA 8957 Depart at 6:15am from Lisbon (LIS) Fly for 3h 5m Arrive at 10:20am in Munich (MUC)

Layover in Munich for 2h 0m

Wed Jun 25th 2025 United Airlines · UA 160 Depart at 12:20pm from Munich (MUC) Fly for 11h 5m Arrive at 4:25pm in Houston (IAH)
US$874

4:55pm - 10:30am
Wed Jun 11th 2025

11h 35m
Houston (IAH) → Lisbon (LIS)

1 Stop

6:15am - 4:25pm
Thu Jun 26th 2025

16h 10m
Lisbon (LIS) → Houston (IAH)

1 Stop

Wed Jun 11th 2025 United Airlines · UA 1788 Depart at 4:55pm from Houston (IAH) Fly for 3h 7m Arrive at 9:02pm in Washington, D.C. (IAD)

Layover in Washington, D.C. for 1h 13m

Wed Jun 11th 2025 United Airlines · UA 942 Depart at 10:15pm from Washington, D.C. (IAD) Fly for 7h 15m Arrive at 10:30am in Lisbon (LIS)

Stay in Lisbon for 13 nights

Thu Jun 26th 2025 United Airlines · UA 8957 Depart at 6:15am from Lisbon (LIS) Fly for 3h 5m Arrive at 10:20am in Munich (MUC)

Layover in Munich for 2h 0m

Thu Jun 26th 2025 United Airlines · UA 160 Depart at 12:20pm from Munich (MUC) Fly for 11h 5m Arrive at 4:25pm in Houston (IAH)
US$874

5:05am - 9:20am
Tue Jun 17th 2025

22h 15m
Houston (IAH) → Lisbon (LIS)

2 Stops

6:15am - 4:25pm
Thu Jun 26th 2025

16h 10m
Lisbon (LIS) → Houston (IAH)

1 Stop

Tue Jun 17th 2025 United Airlines · UA 343 Depart at 5:05am from Houston (IAH) Fly for 2h 56m Arrive at 8:01am in Chicago (ORD)

Layover in Chicago for 6h 39m

Tue Jun 17th 2025 United Airlines · UA 2370 Depart at 2:40pm from Chicago (ORD) Fly for 2h 19m Arrive at 5:59pm in Montreal (YUL)

Layover in Montreal for 3h 36m

Tue Jun 17th 2025 United Airlines · UA 8090 Depart at 9:35pm from Montreal (YUL) Fly for 6h 45m Arrive at 9:20am in Lisbon (LIS)

Stay in Lisbon for 7 nights

Thu Jun 26th 2025 United Airlines · UA 8957 Depart at 6:15am from Lisbon (LIS) Fly for 3h 5m Arrive at 10:20am in Munich (MUC)

Layover in Munich for 2h 0m

Thu Jun 26th 2025 United Airlines · UA 160 Depart at 12:20pm from Munich (MUC) Fly for 11h 5m Arrive at 4:25pm in Houston (IAH)
US$875

4:55pm - 10:30am
Mon Jun 23rd 2025

11h 35m
Houston (IAH) → Lisbon (LIS)

1 Stop

12:50pm - 10:02pm
Wed Jul 2nd 2025

15h 12m
Lisbon (LIS) → Houston (IAH)

1 Stop

Mon Jun 23rd 2025 United Airlines · UA 1788 Depart at 4:55pm from Houston (IAH) Fly for 3h 7m Arrive at 9:02pm in Washington, D.C. (IAD)

Layover in Washington, D.C. for 1h 13m

Mon Jun 23rd 2025 United Airlines · UA 942 Depart at 10:15pm from Washington, D.C. (IAD) Fly for 7h 15m Arrive at 10:30am in Lisbon (LIS)

Stay in Lisbon for 8 nights

Wed Jul 2nd 2025 United Airlines · UA 8038 Depart at 12:50pm from Lisbon (LIS) Fly for 8h 15m Arrive at 4:05pm in Toronto (YYZ)

Layover in Toronto for 3h 25m

Wed Jul 2nd 2025 United Airlines · UA 8212 Depart at 7:30pm from Toronto (YYZ) Fly for 3h 32m Arrive at 10:02pm in Houston (IAH)
US$875

2:25pm - 8:20am
Tue Jun 10th 2025

11h 55m
Houston (IAH) → Lisbon (LIS)

1 Stop

12:50pm - 10:07pm
Wed Jun 25th 2025

15h 17m
Lisbon (LIS) → Houston (IAH)

1 Stop

Tue Jun 10th 2025 United Airlines · UA 2608 Depart at 2:25pm from Houston (IAH) Fly for 3h 46m Arrive at 7:11pm in New York (EWR)

Layover in New York for 1h 14m

Tue Jun 10th 2025 United Airlines · UA 64 Depart at 8:25pm from New York (EWR) Fly for 6h 55m Arrive at 8:20am in Lisbon (LIS)

Stay in Lisbon for 14 nights

Wed Jun 25th 2025 United Airlines · UA 8038 Depart at 12:50pm from Lisbon (LIS) Fly for 8h 15m Arrive at 4:05pm in Toronto (YYZ)

Layover in Toronto for 3h 30m

Wed Jun 25th 2025 United Airlines · UA 8212 Depart at 7:35pm from Toronto (YYZ) Fly for 3h 32m Arrive at 10:07pm in Houston (IAH)
US$875

6:00am - 8:20am
Mon Jun 23rd 2025

20h 20m
Houston (IAH) → Lisbon (LIS)

1 Stop

12:50pm - 10:02pm
Wed Jul 2nd 2025

15h 12m
Lisbon (LIS) → Houston (IAH)

1 Stop

Mon Jun 23rd 2025 United Airlines · UA 1797 Depart at 6:00am from Houston (IAH) Fly for 3h 34m Arrive at 10:34am in New York (EWR)

Layover in New York for 9h 51m

Mon Jun 23rd 2025 United Airlines · UA 64 Depart at 8:25pm from New York (EWR) Fly for 6h 55m Arrive at 8:20am in Lisbon (LIS)

Stay in Lisbon for 8 nights

Wed Jul 2nd 2025 United Airlines · UA 8038 Depart at 12:50pm from Lisbon (LIS) Fly for 8h 15m Arrive at 4:05pm in Toronto (YYZ)

Layover in Toronto for 3h 25m

Wed Jul 2nd 2025 United Airlines · UA 8212 Depart at 7:30pm from Toronto (YYZ) Fly for 3h 32m Arrive at 10:02pm in Houston (IAH)
US$876

7:20am - 11:10am
Tue Jun 17th 2025

21h 50m
Houston (IAH) → Lisbon (LIS)

1 Stop

6:15am - 4:25pm
Thu Jun 26th 2025

16h 10m
Lisbon (LIS) → Houston (IAH)

1 Stop

Tue Jun 17th 2025 United Airlines · UA 8541 Depart at 7:20am from Houston (IAH) Fly for 3h 14m Arrive at 11:34am in Toronto (YYZ)

Layover in Toronto for 11h 21m

Tue Jun 17th 2025 United Airlines · UA 8655 Depart at 10:55pm from Toronto (YYZ) Fly for 7h 15m Arrive at 11:10am in Lisbon (LIS)

Stay in Lisbon for 7 nights

Thu Jun 26th 2025 United Airlines · UA 8957 Depart at 6:15am from Lisbon (LIS) Fly for 3h 5m Arrive at 10:20am in Munich (MUC)

Layover in Munich for 2h 0m

Thu Jun 26th 2025 United Airlines · UA 160 Depart at 12:20pm from Munich (MUC) Fly for 11h 5m Arrive at 4:25pm in Houston (IAH)
US$877

4:55pm - 10:30am
Wed Jun 11th 2025

11h 35m
Houston (IAH) → Lisbon (LIS)

1 Stop

12:50pm - 10:02pm
Wed Jul 2nd 2025

15h 12m
Lisbon (LIS) → Houston (IAH)

1 Stop

Wed Jun 11th 2025 United Airlines · UA 1788 Depart at 4:55pm from Houston (IAH) Fly for 3h 7m Arrive at 9:02pm in Washington, D.C. (IAD)

Layover in Washington, D.C. for 1h 13m

Wed Jun 11th 2025 United Airlines · UA 942 Depart at 10:15pm from Washington, D.C. (IAD) Fly for 7h 15m Arrive at 10:30am in Lisbon (LIS)

Stay in Lisbon for 20 nights

Wed Jul 2nd 2025 United Airlines · UA 8038 Depart at 12:50pm from Lisbon (LIS) Fly for 8h 15m Arrive at 4:05pm in Toronto (YYZ)

Layover in Toronto for 3h 25m

Wed Jul 2nd 2025 United Airlines · UA 8212 Depart at 7:30pm from Toronto (YYZ) Fly for 3h 32m Arrive at 10:02pm in Houston (IAH)
US$877

4:55pm - 10:30am
Wed Jun 11th 2025

11h 35m
Houston (IAH) → Lisbon (LIS)

1 Stop

12:50pm - 10:07pm
Wed Jun 25th 2025

15h 17m
Lisbon (LIS) → Houston (IAH)

1 Stop

Wed Jun 11th 2025 United Airlines · UA 1788 Depart at 4:55pm from Houston (IAH) Fly for 3h 7m Arrive at 9:02pm in Washington, D.C. (IAD)

Layover in Washington, D.C. for 1h 13m

Wed Jun 11th 2025 United Airlines · UA 942 Depart at 10:15pm from Washington, D.C. (IAD) Fly for 7h 15m Arrive at 10:30am in Lisbon (LIS)

Stay in Lisbon for 13 nights

Wed Jun 25th 2025 United Airlines · UA 8038 Depart at 12:50pm from Lisbon (LIS) Fly for 8h 15m Arrive at 4:05pm in Toronto (YYZ)

Layover in Toronto for 3h 30m

Wed Jun 25th 2025 United Airlines · UA 8212 Depart at 7:35pm from Toronto (YYZ) Fly for 3h 32m Arrive at 10:07pm in Houston (IAH)
US$877

2:25pm - 8:20am
Tue Jun 10th 2025

11h 55m
Houston (IAH) → Lisbon (LIS)

1 Stop

12:50pm - 10:02pm
Wed Jul 2nd 2025

15h 12m
Lisbon (LIS) → Houston (IAH)

1 Stop

Tue Jun 10th 2025 United Airlines · UA 2608 Depart at 2:25pm from Houston (IAH) Fly for 3h 46m Arrive at 7:11pm in New York (EWR)

Layover in New York for 1h 14m

Tue Jun 10th 2025 United Airlines · UA 64 Depart at 8:25pm from New York (EWR) Fly for 6h 55m Arrive at 8:20am in Lisbon (LIS)

Stay in Lisbon for 21 nights

Wed Jul 2nd 2025 United Airlines · UA 8038 Depart at 12:50pm from Lisbon (LIS) Fly for 8h 15m Arrive at 4:05pm in Toronto (YYZ)

Layover in Toronto for 3h 25m

Wed Jul 2nd 2025 United Airlines · UA 8212 Depart at 7:30pm from Toronto (YYZ) Fly for 3h 32m Arrive at 10:02pm in Houston (IAH)
US$878

7:20am - 11:10am
Wed Jun 18th 2025

21h 50m
Houston (IAH) → Lisbon (LIS)

1 Stop

12:50pm - 10:02pm
Wed Jul 2nd 2025

15h 12m
Lisbon (LIS) → Houston (IAH)

1 Stop

Wed Jun 18th 2025 United Airlines · UA 8541 Depart at 7:20am from Houston (IAH) Fly for 3h 14m Arrive at 11:34am in Toronto (YYZ)

Layover in Toronto for 11h 21m

Wed Jun 18th 2025 United Airlines · UA 8655 Depart at 10:55pm from Toronto (YYZ) Fly for 7h 15m Arrive at 11:10am in Lisbon (LIS)

Stay in Lisbon for 13 nights

Wed Jul 2nd 2025 United Airlines · UA 8038 Depart at 12:50pm from Lisbon (LIS) Fly for 8h 15m Arrive at 4:05pm in Toronto (YYZ)

Layover in Toronto for 3h 25m

Wed Jul 2nd 2025 United Airlines · UA 8212 Depart at 7:30pm from Toronto (YYZ) Fly for 3h 32m Arrive at 10:02pm in Houston (IAH)
US$878

7:20am - 11:10am
Wed Jun 18th 2025

21h 50m
Houston (IAH) → Lisbon (LIS)

1 Stop

10:25am - 8:45pm
Thu Jun 26th 2025

16h 20m
Lisbon (LIS) → Houston (IAH)

1 Stop

Wed Jun 18th 2025 Air Canada · AC 590 Depart at 7:20am from Houston (IAH) Fly for 3h 14m Arrive at 11:34am in Toronto (YYZ)

Layover in Toronto for 11h 21m

Wed Jun 18th 2025 Air Canada · AC 810 Depart at 10:55pm from Toronto (YYZ) Fly for 7h 15m Arrive at 11:10am in Lisbon (LIS)

Stay in Lisbon for 6 nights

Thu Jun 26th 2025 United Airlines · UA 65 Depart at 10:25am from Lisbon (LIS) Fly for 7h 35m Arrive at 1:00pm in New York (EWR)

Layover in New York for 4h 55m

Thu Jun 26th 2025 United Airlines · UA 1991 Depart at 5:55pm from New York (EWR) Fly for 3h 50m Arrive at 8:45pm in Houston (IAH)
US$878

7:20am - 11:10am
Tue Jun 10th 2025

21h 50m
Houston (IAH) → Lisbon (LIS)

1 Stop

10:25am - 6:51pm
Fri Jun 20th 2025

14h 26m
Lisbon (LIS) → Houston (IAH)

1 Stop

Tue Jun 10th 2025 Air Canada · AC 590 Depart at 7:20am from Houston (IAH) Fly for 3h 14m Arrive at 11:34am in Toronto (YYZ)

Layover in Toronto for 11h 21m

Tue Jun 10th 2025 Air Canada · AC 810 Depart at 10:55pm from Toronto (YYZ) Fly for 7h 15m Arrive at 11:10am in Lisbon (LIS)

Stay in Lisbon for 8 nights

Fri Jun 20th 2025 United Airlines · UA 65 Depart at 10:25am from Lisbon (LIS) Fly for 7h 35m Arrive at 1:00pm in New York (EWR)

Layover in New York for 2h 59m

Fri Jun 20th 2025 United Airlines · UA 2674 Depart at 3:59pm from New York (EWR) Fly for 3h 52m Arrive at 6:51pm in Houston (IAH)
US$879

7:20am - 11:10am
Wed Jun 18th 2025

21h 50m
Houston (IAH) → Lisbon (LIS)

1 Stop

12:50pm - 10:07pm
Wed Jun 25th 2025

15h 17m
Lisbon (LIS) → Houston (IAH)

1 Stop

Wed Jun 18th 2025 United Airlines · UA 8541 Depart at 7:20am from Houston (IAH) Fly for 3h 14m Arrive at 11:34am in Toronto (YYZ)

Layover in Toronto for 11h 21m

Wed Jun 18th 2025 United Airlines · UA 8655 Depart at 10:55pm from Toronto (YYZ) Fly for 7h 15m Arrive at 11:10am in Lisbon (LIS)

Stay in Lisbon for 6 nights

Wed Jun 25th 2025 United Airlines · UA 8038 Depart at 12:50pm from Lisbon (LIS) Fly for 8h 15m Arrive at 4:05pm in Toronto (YYZ)

Layover in Toronto for 3h 30m

Wed Jun 25th 2025 United Airlines · UA 8212 Depart at 7:35pm from Toronto (YYZ) Fly for 3h 32m Arrive at 10:07pm in Houston (IAH)
US$881

2:25pm - 8:20am
Tue Jun 10th 2025

11h 55m
Houston (IAH) → Lisbon (LIS)

1 Stop

12:20pm - 7:28pm
Thu Jun 19th 2025

13h 8m
Lisbon (LIS) → Houston (IAH)

1 Stop

Tue Jun 10th 2025 United Airlines · UA 2608 Depart at 2:25pm from Houston (IAH) Fly for 3h 46m Arrive at 7:11pm in New York (EWR)

Layover in New York for 1h 14m

Tue Jun 10th 2025 United Airlines · UA 64 Depart at 8:25pm from New York (EWR) Fly for 6h 55m Arrive at 8:20am in Lisbon (LIS)

Stay in Lisbon for 8 nights

Thu Jun 19th 2025 United Airlines · UA 943 Depart at 12:20pm from Lisbon (LIS) Fly for 8h 15m Arrive at 3:35pm in Washington, D.C. (IAD)

Layover in Washington, D.C. for 1h 35m

Thu Jun 19th 2025 United Airlines · UA 1360 Depart at 5:10pm from Washington, D.C. (IAD) Fly for 3h 18m Arrive at 7:28pm in Houston (IAH)
US$881

4:55pm - 10:30am
Wed Jun 11th 2025

11h 35m
Houston (IAH) → Lisbon (LIS)

1 Stop

10:25am - 10:18pm
Thu Jun 26th 2025

17h 53m
Lisbon (LIS) → Houston (IAH)

1 Stop

Wed Jun 11th 2025 United Airlines · UA 1788 Depart at 4:55pm from Houston (IAH) Fly for 3h 7m Arrive at 9:02pm in Washington, D.C. (IAD)

Layover in Washington, D.C. for 1h 13m

Wed Jun 11th 2025 United Airlines · UA 942 Depart at 10:15pm from Washington, D.C. (IAD) Fly for 7h 15m Arrive at 10:30am in Lisbon (LIS)

Stay in Lisbon for 13 nights

Thu Jun 26th 2025 United Airlines · UA 65 Depart at 10:25am from Lisbon (LIS) Fly for 7h 35m Arrive at 1:00pm in New York (EWR)

Layover in New York for 6h 31m

Thu Jun 26th 2025 United Airlines · UA 2213 Depart at 7:31pm from New York (EWR) Fly for 3h 47m Arrive at 10:18pm in Houston (IAH)
US$881

7:20am - 11:10am
Wed Jun 18th 2025

21h 50m
Houston (IAH) → Lisbon (LIS)

1 Stop

11:25am - 7:36pm
Wed Jun 25th 2025

14h 11m
Lisbon (LIS) → Houston (IAH)

1 Stop

Wed Jun 18th 2025 United Airlines · UA 8541 Depart at 7:20am from Houston (IAH) Fly for 3h 14m Arrive at 11:34am in Toronto (YYZ)

Layover in Toronto for 11h 21m

Wed Jun 18th 2025 United Airlines · UA 8655 Depart at 10:55pm from Toronto (YYZ) Fly for 7h 15m Arrive at 11:10am in Lisbon (LIS)

Stay in Lisbon for 6 nights

Wed Jun 25th 2025 United Airlines · UA 8089 Depart at 11:25am from Lisbon (LIS) Fly for 7h 30m Arrive at 1:55pm in Montreal (YUL)

Layover in Montreal for 2h 35m

Wed Jun 25th 2025 United Airlines · UA 8706 Depart at 4:30pm from Montreal (YUL) Fly for 4h 6m Arrive at 7:36pm in Houston (IAH)
US$881

7:20am - 11:10am
Tue Jun 17th 2025

21h 50m
Houston (IAH) → Lisbon (LIS)

1 Stop

11:25am - 7:36pm
Tue Jun 24th 2025

14h 11m
Lisbon (LIS) → Houston (IAH)

1 Stop

Tue Jun 17th 2025 United Airlines · UA 8541 Depart at 7:20am from Houston (IAH) Fly for 3h 14m Arrive at 11:34am in Toronto (YYZ)

Layover in Toronto for 11h 21m

Tue Jun 17th 2025 United Airlines · UA 8655 Depart at 10:55pm from Toronto (YYZ) Fly for 7h 15m Arrive at 11:10am in Lisbon (LIS)

Stay in Lisbon for 6 nights

Tue Jun 24th 2025 United Airlines · UA 8089 Depart at 11:25am from Lisbon (LIS) Fly for 7h 30m Arrive at 1:55pm in Montreal (YUL)

Layover in Montreal for 2h 35m

Tue Jun 24th 2025 United Airlines · UA 8706 Depart at 4:30pm from Montreal (YUL) Fly for 4h 6m Arrive at 7:36pm in Houston (IAH)
US$881

6:00am - 10:30am
Mon Jun 9th 2025

22h 30m
Houston (IAH) → Lisbon (LIS)

2 Stops

11:25am - 7:36pm
Thu Jun 19th 2025

14h 11m
Lisbon (LIS) → Houston (IAH)

1 Stop

Mon Jun 9th 2025 United Airlines · UA 1797 Depart at 6:00am from Houston (IAH) Fly for 3h 34m Arrive at 10:34am in New York (EWR)

Layover in New York for 9h 11m

Mon Jun 9th 2025 United Airlines · UA 1466 Depart at 7:45pm from New York (EWR) Fly for 1h 28m Arrive at 9:13pm in Washington, D.C. (IAD)

Layover in Washington, D.C. for 1h 2m

Mon Jun 9th 2025 United Airlines · UA 942 Depart at 10:15pm from Washington, D.C. (IAD) Fly for 7h 15m Arrive at 10:30am in Lisbon (LIS)

Stay in Lisbon for 9 nights

Thu Jun 19th 2025 United Airlines · UA 8089 Depart at 11:25am from Lisbon (LIS) Fly for 7h 30m Arrive at 1:55pm in Montreal (YUL)

Layover in Montreal for 2h 35m

Thu Jun 19th 2025 United Airlines · UA 8706 Depart at 4:30pm from Montreal (YUL) Fly for 4h 6m Arrive at 7:36pm in Houston (IAH)
US$881

7:20am - 8:20am
Tue Jun 10th 2025

19h 0m
Houston (IAH) → Lisbon (LIS)

1 Stop

12:20pm - 12:26am
Tue Jun 24th 2025

18h 6m
Lisbon (LIS) → Houston (IAH)

1 Stop

Tue Jun 10th 2025 United Airlines · UA 1886 Depart at 7:20am from Houston (IAH) Fly for 3h 38m Arrive at 11:58am in New York (EWR)

Layover in New York for 8h 27m

Tue Jun 10th 2025 United Airlines · UA 64 Depart at 8:25pm from New York (EWR) Fly for 6h 55m Arrive at 8:20am in Lisbon (LIS)

Stay in Lisbon for 13 nights

Tue Jun 24th 2025 United Airlines · UA 943 Depart at 12:20pm from Lisbon (LIS) Fly for 8h 15m Arrive at 3:35pm in Washington, D.C. (IAD)

Layover in Washington, D.C. for 6h 31m

Tue Jun 24th 2025 United Airlines · UA 2275 Depart at 10:06pm from Washington, D.C. (IAD) Fly for 3h 20m Arrive at 12:26am in Houston (IAH)
US$884

7:20am - 11:10am
Wed Jun 25th 2025

21h 50m
Houston (IAH) → Lisbon (LIS)

1 Stop

12:50pm - 10:02pm
Wed Jul 2nd 2025

15h 12m
Lisbon (LIS) → Houston (IAH)

1 Stop

Wed Jun 25th 2025 United Airlines · UA 8541 Depart at 7:20am from Houston (IAH) Fly for 3h 14m Arrive at 11:34am in Toronto (YYZ)

Layover in Toronto for 11h 21m

Wed Jun 25th 2025 United Airlines · UA 8655 Depart at 10:55pm from Toronto (YYZ) Fly for 7h 15m Arrive at 11:10am in Lisbon (LIS)

Stay in Lisbon for 6 nights

Wed Jul 2nd 2025 United Airlines · UA 8038 Depart at 12:50pm from Lisbon (LIS) Fly for 8h 15m Arrive at 4:05pm in Toronto (YYZ)

Layover in Toronto for 3h 25m

Wed Jul 2nd 2025 United Airlines · UA 8212 Depart at 7:30pm from Toronto (YYZ) Fly for 3h 32m Arrive at 10:02pm in Houston (IAH)
US$886

6:00am - 10:30am
Mon Jun 9th 2025

22h 30m
Houston (IAH) → Lisbon (LIS)

2 Stops

12:20pm - 7:28pm
Thu Jun 19th 2025

13h 8m
Lisbon (LIS) → Houston (IAH)

1 Stop

Mon Jun 9th 2025 United Airlines · UA 1797 Depart at 6:00am from Houston (IAH) Fly for 3h 34m Arrive at 10:34am in New York (EWR)

Layover in New York for 9h 11m

Mon Jun 9th 2025 United Airlines · UA 1466 Depart at 7:45pm from New York (EWR) Fly for 1h 28m Arrive at 9:13pm in Washington, D.C. (IAD)

Layover in Washington, D.C. for 1h 2m

Mon Jun 9th 2025 United Airlines · UA 942 Depart at 10:15pm from Washington, D.C. (IAD) Fly for 7h 15m Arrive at 10:30am in Lisbon (LIS)

Stay in Lisbon for 9 nights

Thu Jun 19th 2025 United Airlines · UA 943 Depart at 12:20pm from Lisbon (LIS) Fly for 8h 15m Arrive at 3:35pm in Washington, D.C. (IAD)

Layover in Washington, D.C. for 1h 35m

Thu Jun 19th 2025 United Airlines · UA 1360 Depart at 5:10pm from Washington, D.C. (IAD) Fly for 3h 18m Arrive at 7:28pm in Houston (IAH)
US$895

4:55pm - 10:30am
Wed Jun 11th 2025

11h 35m
Houston (IAH) → Lisbon (LIS)

1 Stop

7:30am - 5:50pm
Wed Jun 25th 2025

16h 20m
Lisbon (LIS) → Houston (IAH)

1 Stop

Wed Jun 11th 2025 United Airlines · UA 1788 Depart at 4:55pm from Houston (IAH) Fly for 3h 7m Arrive at 9:02pm in Washington, D.C. (IAD)

Layover in Washington, D.C. for 1h 13m

Wed Jun 11th 2025 United Airlines · UA 942 Depart at 10:15pm from Washington, D.C. (IAD) Fly for 7h 15m Arrive at 10:30am in Lisbon (LIS)

Stay in Lisbon for 12 nights

Wed Jun 25th 2025 United Airlines · UA 9133 Depart at 7:30am from Lisbon (LIS) Fly for 3h 5m Arrive at 11:35am in Frankfurt (FRA)

Layover in Frankfurt for 2h 20m

Wed Jun 25th 2025 United Airlines · UA 47 Depart at 1:55pm from Frankfurt (FRA) Fly for 10h 55m Arrive at 5:50pm in Houston (IAH)
US$895

4:55pm - 10:30am
Wed Jun 11th 2025

11h 35m
Houston (IAH) → Lisbon (LIS)

1 Stop

7:30am - 5:50pm
Thu Jun 26th 2025

16h 20m
Lisbon (LIS) → Houston (IAH)

1 Stop

Wed Jun 11th 2025 United Airlines · UA 1788 Depart at 4:55pm from Houston (IAH) Fly for 3h 7m Arrive at 9:02pm in Washington, D.C. (IAD)

Layover in Washington, D.C. for 1h 13m

Wed Jun 11th 2025 United Airlines · UA 942 Depart at 10:15pm from Washington, D.C. (IAD) Fly for 7h 15m Arrive at 10:30am in Lisbon (LIS)

Stay in Lisbon for 13 nights

Thu Jun 26th 2025 United Airlines · UA 9133 Depart at 7:30am from Lisbon (LIS) Fly for 3h 5m Arrive at 11:35am in Frankfurt (FRA)

Layover in Frankfurt for 2h 20m

Thu Jun 26th 2025 United Airlines · UA 47 Depart at 1:55pm from Frankfurt (FRA) Fly for 10h 55m Arrive at 5:50pm in Houston (IAH)
US$895

2:25pm - 8:20am
Tue Jun 10th 2025

11h 55m
Houston (IAH) → Lisbon (LIS)

1 Stop

7:30am - 5:50pm
Tue Jun 24th 2025

16h 20m
Lisbon (LIS) → Houston (IAH)

1 Stop

Tue Jun 10th 2025 United Airlines · UA 2608 Depart at 2:25pm from Houston (IAH) Fly for 3h 46m Arrive at 7:11pm in New York (EWR)

Layover in New York for 1h 14m

Tue Jun 10th 2025 United Airlines · UA 64 Depart at 8:25pm from New York (EWR) Fly for 6h 55m Arrive at 8:20am in Lisbon (LIS)

Stay in Lisbon for 12 nights

Tue Jun 24th 2025 United Airlines · UA 9133 Depart at 7:30am from Lisbon (LIS) Fly for 3h 5m Arrive at 11:35am in Frankfurt (FRA)

Layover in Frankfurt for 2h 20m

Tue Jun 24th 2025 United Airlines · UA 47 Depart at 1:55pm from Frankfurt (FRA) Fly for 10h 55m Arrive at 5:50pm in Houston (IAH)
US$895

2:25pm - 8:20am
Tue Jun 10th 2025

11h 55m
Houston (IAH) → Lisbon (LIS)

1 Stop

7:30am - 5:50pm
Wed Jun 25th 2025

16h 20m
Lisbon (LIS) → Houston (IAH)

1 Stop

Tue Jun 10th 2025 United Airlines · UA 2608 Depart at 2:25pm from Houston (IAH) Fly for 3h 46m Arrive at 7:11pm in New York (EWR)

Layover in New York for 1h 14m

Tue Jun 10th 2025 United Airlines · UA 64 Depart at 8:25pm from New York (EWR) Fly for 6h 55m Arrive at 8:20am in Lisbon (LIS)

Stay in Lisbon for 13 nights

Wed Jun 25th 2025 United Airlines · UA 9133 Depart at 7:30am from Lisbon (LIS) Fly for 3h 5m Arrive at 11:35am in Frankfurt (FRA)

Layover in Frankfurt for 2h 20m

Wed Jun 25th 2025 United Airlines · UA 47 Depart at 1:55pm from Frankfurt (FRA) Fly for 10h 55m Arrive at 5:50pm in Houston (IAH)
US$895

2:25pm - 8:20am
Tue Jun 10th 2025

11h 55m
Houston (IAH) → Lisbon (LIS)

1 Stop

5:05am - 5:50pm
Thu Jun 19th 2025

18h 45m
Lisbon (LIS) → Houston (IAH)

1 Stop

Tue Jun 10th 2025 United Airlines · UA 2608 Depart at 2:25pm from Houston (IAH) Fly for 3h 46m Arrive at 7:11pm in New York (EWR)

Layover in New York for 1h 14m

Tue Jun 10th 2025 United Airlines · UA 64 Depart at 8:25pm from New York (EWR) Fly for 6h 55m Arrive at 8:20am in Lisbon (LIS)

Stay in Lisbon for 7 nights

Thu Jun 19th 2025 United Airlines · UA 9159 Depart at 5:05am from Lisbon (LIS) Fly for 3h 5m Arrive at 9:10am in Frankfurt (FRA)

Layover in Frankfurt for 4h 45m

Thu Jun 19th 2025 United Airlines · UA 47 Depart at 1:55pm from Frankfurt (FRA) Fly for 10h 55m Arrive at 5:50pm in Houston (IAH)
US$943

4:55pm - 10:30am
Thu Jun 12th 2025

11h 35m
Houston (IAH) → Lisbon (LIS)

1 Stop

12:50pm - 10:02pm
Wed Jul 2nd 2025

15h 12m
Lisbon (LIS) → Houston (IAH)

1 Stop

Thu Jun 12th 2025 United Airlines · UA 1788 Depart at 4:55pm from Houston (IAH) Fly for 3h 7m Arrive at 9:02pm in Washington, D.C. (IAD)

Layover in Washington, D.C. for 1h 13m

Thu Jun 12th 2025 United Airlines · UA 942 Depart at 10:15pm from Washington, D.C. (IAD) Fly for 7h 15m Arrive at 10:30am in Lisbon (LIS)

Stay in Lisbon for 19 nights

Wed Jul 2nd 2025 United Airlines · UA 8038 Depart at 12:50pm from Lisbon (LIS) Fly for 8h 15m Arrive at 4:05pm in Toronto (YYZ)

Layover in Toronto for 3h 25m

Wed Jul 2nd 2025 United Airlines · UA 8212 Depart at 7:30pm from Toronto (YYZ) Fly for 3h 32m Arrive at 10:02pm in Houston (IAH)
US$943

4:55pm - 10:30am
Thu Jun 12th 2025

11h 35m
Houston (IAH) → Lisbon (LIS)

1 Stop

11:25am - 7:36pm
Tue Jun 24th 2025

14h 11m
Lisbon (LIS) → Houston (IAH)

1 Stop

Thu Jun 12th 2025 United Airlines · UA 1788 Depart at 4:55pm from Houston (IAH) Fly for 3h 7m Arrive at 9:02pm in Washington, D.C. (IAD)

Layover in Washington, D.C. for 1h 13m

Thu Jun 12th 2025 United Airlines · UA 942 Depart at 10:15pm from Washington, D.C. (IAD) Fly for 7h 15m Arrive at 10:30am in Lisbon (LIS)

Stay in Lisbon for 11 nights

Tue Jun 24th 2025 United Airlines · UA 8089 Depart at 11:25am from Lisbon (LIS) Fly for 7h 30m Arrive at 1:55pm in Montreal (YUL)

Layover in Montreal for 2h 35m

Tue Jun 24th 2025 United Airlines · UA 8706 Depart at 4:30pm from Montreal (YUL) Fly for 4h 6m Arrive at 7:36pm in Houston (IAH)
US$943

4:55pm - 10:30am
Thu Jun 12th 2025

11h 35m
Houston (IAH) → Lisbon (LIS)

1 Stop

11:25am - 7:41pm
Thu Jul 3rd 2025

14h 16m
Lisbon (LIS) → Houston (IAH)

1 Stop

Thu Jun 12th 2025 United Airlines · UA 1788 Depart at 4:55pm from Houston (IAH) Fly for 3h 7m Arrive at 9:02pm in Washington, D.C. (IAD)

Layover in Washington, D.C. for 1h 13m

Thu Jun 12th 2025 United Airlines · UA 942 Depart at 10:15pm from Washington, D.C. (IAD) Fly for 7h 15m Arrive at 10:30am in Lisbon (LIS)

Stay in Lisbon for 20 nights

Thu Jul 3rd 2025 United Airlines · UA 8089 Depart at 11:25am from Lisbon (LIS) Fly for 7h 30m Arrive at 1:55pm in Montreal (YUL)

Layover in Montreal for 2h 40m

Thu Jul 3rd 2025 United Airlines · UA 8706 Depart at 4:35pm from Montreal (YUL) Fly for 4h 6m Arrive at 7:41pm in Houston (IAH)
US$945

4:55pm - 10:30am
Wed Jun 11th 2025

11h 35m
Houston (IAH) → Lisbon (LIS)

1 Stop

11:25am - 7:36pm
Mon Jun 23rd 2025

14h 11m
Lisbon (LIS) → Houston (IAH)

1 Stop

Wed Jun 11th 2025 United Airlines · UA 1788 Depart at 4:55pm from Houston (IAH) Fly for 3h 7m Arrive at 9:02pm in Washington, D.C. (IAD)

Layover in Washington, D.C. for 1h 13m

Wed Jun 11th 2025 United Airlines · UA 942 Depart at 10:15pm from Washington, D.C. (IAD) Fly for 7h 15m Arrive at 10:30am in Lisbon (LIS)

Stay in Lisbon for 11 nights

Mon Jun 23rd 2025 United Airlines · UA 8089 Depart at 11:25am from Lisbon (LIS) Fly for 7h 30m Arrive at 1:55pm in Montreal (YUL)

Layover in Montreal for 2h 35m

Mon Jun 23rd 2025 United Airlines · UA 8706 Depart at 4:30pm from Montreal (YUL) Fly for 4h 6m Arrive at 7:36pm in Houston (IAH)
US$945

4:55pm - 10:30am
Thu Jun 12th 2025

11h 35m
Houston (IAH) → Lisbon (LIS)

1 Stop

11:25am - 7:36pm
Thu Jun 19th 2025

14h 11m
Lisbon (LIS) → Houston (IAH)

1 Stop

Thu Jun 12th 2025 United Airlines · UA 1788 Depart at 4:55pm from Houston (IAH) Fly for 3h 7m Arrive at 9:02pm in Washington, D.C. (IAD)

Layover in Washington, D.C. for 1h 13m

Thu Jun 12th 2025 United Airlines · UA 942 Depart at 10:15pm from Washington, D.C. (IAD) Fly for 7h 15m Arrive at 10:30am in Lisbon (LIS)

Stay in Lisbon for 6 nights

Thu Jun 19th 2025 United Airlines · UA 8089 Depart at 11:25am from Lisbon (LIS) Fly for 7h 30m Arrive at 1:55pm in Montreal (YUL)

Layover in Montreal for 2h 35m

Thu Jun 19th 2025 United Airlines · UA 8706 Depart at 4:30pm from Montreal (YUL) Fly for 4h 6m Arrive at 7:36pm in Houston (IAH)
US$945

4:55pm - 10:30am
Mon Jun 23rd 2025

11h 35m
Houston (IAH) → Lisbon (LIS)

1 Stop

11:25am - 7:36pm
Mon Jun 30th 2025

14h 11m
Lisbon (LIS) → Houston (IAH)

1 Stop

Mon Jun 23rd 2025 United Airlines · UA 1788 Depart at 4:55pm from Houston (IAH) Fly for 3h 7m Arrive at 9:02pm in Washington, D.C. (IAD)

Layover in Washington, D.C. for 1h 13m

Mon Jun 23rd 2025 United Airlines · UA 942 Depart at 10:15pm from Washington, D.C. (IAD) Fly for 7h 15m Arrive at 10:30am in Lisbon (LIS)

Stay in Lisbon for 6 nights

Mon Jun 30th 2025 United Airlines · UA 8089 Depart at 11:25am from Lisbon (LIS) Fly for 7h 30m Arrive at 1:55pm in Montreal (YUL)

Layover in Montreal for 2h 35m

Mon Jun 30th 2025 United Airlines · UA 8706 Depart at 4:30pm from Montreal (YUL) Fly for 4h 6m Arrive at 7:36pm in Houston (IAH)
US$945

2:25pm - 8:20am
Tue Jun 10th 2025

11h 55m
Houston (IAH) → Lisbon (LIS)

1 Stop

11:25am - 7:36pm
Mon Jun 23rd 2025

14h 11m
Lisbon (LIS) → Houston (IAH)

1 Stop

Tue Jun 10th 2025 United Airlines · UA 2608 Depart at 2:25pm from Houston (IAH) Fly for 3h 46m Arrive at 7:11pm in New York (EWR)

Layover in New York for 1h 14m

Tue Jun 10th 2025 United Airlines · UA 64 Depart at 8:25pm from New York (EWR) Fly for 6h 55m Arrive at 8:20am in Lisbon (LIS)

Stay in Lisbon for 12 nights

Mon Jun 23rd 2025 United Airlines · UA 8089 Depart at 11:25am from Lisbon (LIS) Fly for 7h 30m Arrive at 1:55pm in Montreal (YUL)

Layover in Montreal for 2h 35m

Mon Jun 23rd 2025 United Airlines · UA 8706 Depart at 4:30pm from Montreal (YUL) Fly for 4h 6m Arrive at 7:36pm in Houston (IAH)
US$945

2:25pm - 8:20am
Mon Jun 23rd 2025

11h 55m
Houston (IAH) → Lisbon (LIS)

1 Stop

11:25am - 7:36pm
Mon Jun 30th 2025

14h 11m
Lisbon (LIS) → Houston (IAH)

1 Stop

Mon Jun 23rd 2025 United Airlines · UA 2608 Depart at 2:25pm from Houston (IAH) Fly for 3h 46m Arrive at 7:11pm in New York (EWR)

Layover in New York for 1h 14m

Mon Jun 23rd 2025 United Airlines · UA 64 Depart at 8:25pm from New York (EWR) Fly for 6h 55m Arrive at 8:20am in Lisbon (LIS)

Stay in Lisbon for 6 nights

Mon Jun 30th 2025 United Airlines · UA 8089 Depart at 11:25am from Lisbon (LIS) Fly for 7h 30m Arrive at 1:55pm in Montreal (YUL)

Layover in Montreal for 2h 35m

Mon Jun 30th 2025 United Airlines · UA 8706 Depart at 4:30pm from Montreal (YUL) Fly for 4h 6m Arrive at 7:36pm in Houston (IAH)
US$955

4:55pm - 10:30am
Thu Jun 12th 2025

11h 35m
Houston (IAH) → Lisbon (LIS)

1 Stop

10:25am - 8:45pm
Thu Jun 26th 2025

16h 20m
Lisbon (LIS) → Houston (IAH)

1 Stop

Thu Jun 12th 2025 United Airlines · UA 1788 Depart at 4:55pm from Houston (IAH) Fly for 3h 7m Arrive at 9:02pm in Washington, D.C. (IAD)

Layover in Washington, D.C. for 1h 13m

Thu Jun 12th 2025 United Airlines · UA 942 Depart at 10:15pm from Washington, D.C. (IAD) Fly for 7h 15m Arrive at 10:30am in Lisbon (LIS)

Stay in Lisbon for 12 nights

Thu Jun 26th 2025 United Airlines · UA 65 Depart at 10:25am from Lisbon (LIS) Fly for 7h 35m Arrive at 1:00pm in New York (EWR)

Layover in New York for 4h 55m

Thu Jun 26th 2025 United Airlines · UA 1991 Depart at 5:55pm from New York (EWR) Fly for 3h 50m Arrive at 8:45pm in Houston (IAH)
US$956

4:55pm - 10:30am
Thu Jun 12th 2025

11h 35m
Houston (IAH) → Lisbon (LIS)

1 Stop

12:20pm - 7:28pm
Thu Jun 19th 2025

13h 8m
Lisbon (LIS) → Houston (IAH)

1 Stop

Thu Jun 12th 2025 United Airlines · UA 1788 Depart at 4:55pm from Houston (IAH) Fly for 3h 7m Arrive at 9:02pm in Washington, D.C. (IAD)

Layover in Washington, D.C. for 1h 13m

Thu Jun 12th 2025 United Airlines · UA 942 Depart at 10:15pm from Washington, D.C. (IAD) Fly for 7h 15m Arrive at 10:30am in Lisbon (LIS)

Stay in Lisbon for 6 nights

Thu Jun 19th 2025 United Airlines · UA 943 Depart at 12:20pm from Lisbon (LIS) Fly for 8h 15m Arrive at 3:35pm in Washington, D.C. (IAD)

Layover in Washington, D.C. for 1h 35m

Thu Jun 19th 2025 United Airlines · UA 1360 Depart at 5:10pm from Washington, D.C. (IAD) Fly for 3h 18m Arrive at 7:28pm in Houston (IAH)
US$1146

8:24pm - 8:20am
Mon Jun 9th 2025

29h 56m
Houston (IAH) → Lisbon (LIS)

1 Stop

12:50pm - 11:15am
Sun Jun 22nd 2025

28h 25m
Lisbon (LIS) → Houston (IAH)

1 Stop

Mon Jun 9th 2025 United Airlines · UA 1444 Depart at 8:24pm from Houston (IAH) Fly for 3h 36m Arrive at 1:00am in New York (EWR)

Layover in New York for 19h 25m

Tue Jun 10th 2025 United Airlines · UA 64 Depart at 8:25pm from New York (EWR) Fly for 6h 55m Arrive at 8:20am in Lisbon (LIS)

Stay in Lisbon for 11 nights

Sun Jun 22nd 2025 United Airlines · UA 8038 Depart at 12:50pm from Lisbon (LIS) Fly for 8h 15m Arrive at 4:05pm in Toronto (YYZ)

Layover in Toronto for 16h 40m

Mon Jun 23rd 2025 United Airlines · UA 8350 Depart at 8:45am from Toronto (YYZ) Fly for 3h 30m Arrive at 11:15am in Houston (IAH)
US$1169

4:43pm - 8:20am
Mon Jun 9th 2025

33h 37m
Houston (IAH) → Lisbon (LIS)

1 Stop

12:50pm - 10:07pm
Sun Jun 22nd 2025

15h 17m
Lisbon (LIS) → Houston (IAH)

1 Stop

Mon Jun 9th 2025 United Airlines · UA 1646 Depart at 4:43pm from Houston (IAH) Fly for 3h 46m Arrive at 9:29pm in New York (EWR)

Layover in New York for 22h 56m

Tue Jun 10th 2025 United Airlines · UA 64 Depart at 8:25pm from New York (EWR) Fly for 6h 55m Arrive at 8:20am in Lisbon (LIS)

Stay in Lisbon for 11 nights

Sun Jun 22nd 2025 United Airlines · UA 8038 Depart at 12:50pm from Lisbon (LIS) Fly for 8h 15m Arrive at 4:05pm in Toronto (YYZ)

Layover in Toronto for 3h 30m

Sun Jun 22nd 2025 United Airlines · UA 8212 Depart at 7:35pm from Toronto (YYZ) Fly for 3h 32m Arrive at 10:07pm in Houston (IAH)
US$1177

4:43pm - 8:40am
Tue Jun 24th 2025

10h 57m
Houston (IAH) → Ponta Delgada (PDL)

1 Stop

11:00am - 6:04pm
Tue Jul 1st 2025

12h 4m
Ponta Delgada (PDL) → Houston (IAH)

1 Stop

Tue Jun 24th 2025 United Airlines · UA 1646 Depart at 4:43pm from Houston (IAH) Fly for 3h 46m Arrive at 9:29pm in New York (EWR)

Layover in New York for 1h 36m

Tue Jun 24th 2025 United Airlines · UA 216 Depart at 11:05pm from New York (EWR) Fly for 5h 35m Arrive at 8:40am in Ponta Delgada (PDL)

Stay in Ponta Delgada for 6 nights

Tue Jul 1st 2025 United Airlines · UA 217 Depart at 11:00am from Ponta Delgada (PDL) Fly for 6h 15m Arrive at 1:15pm in New York (EWR)

Layover in New York for 2h 5m

Tue Jul 1st 2025 United Airlines · UA 2674 Depart at 3:20pm from New York (EWR) Fly for 3h 44m Arrive at 6:04pm in Houston (IAH)
US$1215

4:43pm - 8:20am
Mon Jun 9th 2025

33h 37m
Houston (IAH) → Lisbon (LIS)

1 Stop

12:20pm - 12:26am
Sun Jun 22nd 2025

18h 6m
Lisbon (LIS) → Houston (IAH)

1 Stop

Mon Jun 9th 2025 United Airlines · UA 1646 Depart at 4:43pm from Houston (IAH) Fly for 3h 46m Arrive at 9:29pm in New York (EWR)

Layover in New York for 22h 56m

Tue Jun 10th 2025 United Airlines · UA 64 Depart at 8:25pm from New York (EWR) Fly for 6h 55m Arrive at 8:20am in Lisbon (LIS)

Stay in Lisbon for 11 nights

Sun Jun 22nd 2025 United Airlines · UA 943 Depart at 12:20pm from Lisbon (LIS) Fly for 8h 15m Arrive at 3:35pm in Washington, D.C. (IAD)

Layover in Washington, D.C. for 6h 31m

Sun Jun 22nd 2025 United Airlines · UA 2275 Depart at 10:06pm from Washington, D.C. (IAD) Fly for 3h 20m Arrive at 12:26am in Houston (IAH)
US$1221

8:24pm - 8:20am
Mon Jun 9th 2025

29h 56m
Houston (IAH) → Lisbon (LIS)

1 Stop

12:20pm - 12:26am
Sun Jun 22nd 2025

18h 6m
Lisbon (LIS) → Houston (IAH)

1 Stop

Mon Jun 9th 2025 United Airlines · UA 1444 Depart at 8:24pm from Houston (IAH) Fly for 3h 36m Arrive at 1:00am in New York (EWR)

Layover in New York for 19h 25m

Tue Jun 10th 2025 United Airlines · UA 64 Depart at 8:25pm from New York (EWR) Fly for 6h 55m Arrive at 8:20am in Lisbon (LIS)

Stay in Lisbon for 11 nights

Sun Jun 22nd 2025 United Airlines · UA 943 Depart at 12:20pm from Lisbon (LIS) Fly for 8h 15m Arrive at 3:35pm in Washington, D.C. (IAD)

Layover in Washington, D.C. for 6h 31m

Sun Jun 22nd 2025 United Airlines · UA 2275 Depart at 10:06pm from Washington, D.C. (IAD) Fly for 3h 20m Arrive at 12:26am in Houston (IAH)
US$1223

8:24pm - 8:20am
Mon Jun 9th 2025

29h 56m
Houston (IAH) → Lisbon (LIS)

1 Stop

12:50pm - 10:07pm
Sun Jun 22nd 2025

15h 17m
Lisbon (LIS) → Houston (IAH)

1 Stop

Mon Jun 9th 2025 United Airlines · UA 1444 Depart at 8:24pm from Houston (IAH) Fly for 3h 36m Arrive at 1:00am in New York (EWR)

Layover in New York for 19h 25m

Tue Jun 10th 2025 United Airlines · UA 64 Depart at 8:25pm from New York (EWR) Fly for 6h 55m Arrive at 8:20am in Lisbon (LIS)

Stay in Lisbon for 11 nights

Sun Jun 22nd 2025 United Airlines · UA 8038 Depart at 12:50pm from Lisbon (LIS) Fly for 8h 15m Arrive at 4:05pm in Toronto (YYZ)

Layover in Toronto for 3h 30m

Sun Jun 22nd 2025 United Airlines · UA 8212 Depart at 7:35pm from Toronto (YYZ) Fly for 3h 32m Arrive at 10:07pm in Houston (IAH)
US$1258

4:43pm - 8:40am
Sun Jun 22nd 2025

10h 57m
Houston (IAH) → Ponta Delgada (PDL)

1 Stop

11:00am - 6:04pm
Sun Jun 29th 2025

12h 4m
Ponta Delgada (PDL) → Houston (IAH)

1 Stop

Sun Jun 22nd 2025 United Airlines · UA 1646 Depart at 4:43pm from Houston (IAH) Fly for 3h 46m Arrive at 9:29pm in New York (EWR)

Layover in New York for 1h 36m

Sun Jun 22nd 2025 United Airlines · UA 216 Depart at 11:05pm from New York (EWR) Fly for 5h 35m Arrive at 8:40am in Ponta Delgada (PDL)

Stay in Ponta Delgada for 6 nights

Sun Jun 29th 2025 United Airlines · UA 217 Depart at 11:00am from Ponta Delgada (PDL) Fly for 6h 15m Arrive at 1:15pm in New York (EWR)

Layover in New York for 2h 5m

Sun Jun 29th 2025 United Airlines · UA 2674 Depart at 3:20pm from New York (EWR) Fly for 3h 44m Arrive at 6:04pm in Houston (IAH)
US$1258

4:43pm - 8:40am
Sun Jun 15th 2025

10h 57m
Houston (IAH) → Ponta Delgada (PDL)

1 Stop

11:00am - 6:51pm
Sun Jun 22nd 2025

12h 51m
Ponta Delgada (PDL) → Houston (IAH)

1 Stop

Sun Jun 15th 2025 United Airlines · UA 1646 Depart at 4:43pm from Houston (IAH) Fly for 3h 46m Arrive at 9:29pm in New York (EWR)

Layover in New York for 1h 36m

Sun Jun 15th 2025 United Airlines · UA 216 Depart at 11:05pm from New York (EWR) Fly for 5h 35m Arrive at 8:40am in Ponta Delgada (PDL)

Stay in Ponta Delgada for 6 nights

Sun Jun 22nd 2025 United Airlines · UA 217 Depart at 11:00am from Ponta Delgada (PDL) Fly for 6h 15m Arrive at 1:15pm in New York (EWR)

Layover in New York for 2h 44m

Sun Jun 22nd 2025 United Airlines · UA 2674 Depart at 3:59pm from New York (EWR) Fly for 3h 52m Arrive at 6:51pm in Houston (IAH)
US$1262

12:05pm - 11:10am
Wed Jul 2nd 2025

17h 5m
Houston (IAH) → Lisbon (LIS)

1 Stop

11:25am - 7:41pm
Sat Jul 5th 2025

14h 16m
Lisbon (LIS) → Houston (IAH)

1 Stop

Wed Jul 2nd 2025 United Airlines · UA 8021 Depart at 12:05pm from Houston (IAH) Fly for 3h 14m Arrive at 4:19pm in Toronto (YYZ)

Layover in Toronto for 6h 36m

Wed Jul 2nd 2025 United Airlines · UA 8655 Depart at 10:55pm from Toronto (YYZ) Fly for 7h 15m Arrive at 11:10am in Lisbon (LIS)

Stay in Lisbon for 2 nights

Sat Jul 5th 2025 United Airlines · UA 8089 Depart at 11:25am from Lisbon (LIS) Fly for 7h 30m Arrive at 1:55pm in Montreal (YUL)

Layover in Montreal for 2h 40m

Sat Jul 5th 2025 United Airlines · UA 8706 Depart at 4:35pm from Montreal (YUL) Fly for 4h 6m Arrive at 7:41pm in Houston (IAH)
US$1269

12:05pm - 11:10am
Wed Jul 2nd 2025

17h 5m
Houston (IAH) → Lisbon (LIS)

1 Stop

12:50pm - 10:02pm
Sat Jul 5th 2025

15h 12m
Lisbon (LIS) → Houston (IAH)

1 Stop

Wed Jul 2nd 2025 United Airlines · UA 8021 Depart at 12:05pm from Houston (IAH) Fly for 3h 14m Arrive at 4:19pm in Toronto (YYZ)

Layover in Toronto for 6h 36m

Wed Jul 2nd 2025 United Airlines · UA 8655 Depart at 10:55pm from Toronto (YYZ) Fly for 7h 15m Arrive at 11:10am in Lisbon (LIS)

Stay in Lisbon for 2 nights

Sat Jul 5th 2025 United Airlines · UA 8038 Depart at 12:50pm from Lisbon (LIS) Fly for 8h 15m Arrive at 4:05pm in Toronto (YYZ)

Layover in Toronto for 3h 25m

Sat Jul 5th 2025 United Airlines · UA 8212 Depart at 7:30pm from Toronto (YYZ) Fly for 3h 32m Arrive at 10:02pm in Houston (IAH)
US$1276

12:05pm - 11:10am
Mon Jun 9th 2025

17h 5m
Houston (IAH) → Lisbon (LIS)

1 Stop

12:50pm - 10:07pm
Sun Jun 22nd 2025

15h 17m
Lisbon (LIS) → Houston (IAH)

1 Stop

Mon Jun 9th 2025 United Airlines · UA 8021 Depart at 12:05pm from Houston (IAH) Fly for 3h 14m Arrive at 4:19pm in Toronto (YYZ)

Layover in Toronto for 6h 36m

Mon Jun 9th 2025 United Airlines · UA 8655 Depart at 10:55pm from Toronto (YYZ) Fly for 7h 15m Arrive at 11:10am in Lisbon (LIS)

Stay in Lisbon for 12 nights

Sun Jun 22nd 2025 Air Canada · AC 811 Depart at 12:50pm from Lisbon (LIS) Fly for 8h 15m Arrive at 4:05pm in Toronto (YYZ)

Layover in Toronto for 3h 30m

Sun Jun 22nd 2025 Air Canada · AC 595 Depart at 7:35pm from Toronto (YYZ) Fly for 3h 32m Arrive at 10:07pm in Houston (IAH)
US$1276

7:20am - 11:10am
Mon Jun 9th 2025

21h 50m
Houston (IAH) → Lisbon (LIS)

1 Stop

12:50pm - 10:07pm
Sun Jun 22nd 2025

15h 17m
Lisbon (LIS) → Houston (IAH)

1 Stop

Mon Jun 9th 2025 United Airlines · UA 8541 Depart at 7:20am from Houston (IAH) Fly for 3h 14m Arrive at 11:34am in Toronto (YYZ)

Layover in Toronto for 11h 21m

Mon Jun 9th 2025 United Airlines · UA 8655 Depart at 10:55pm from Toronto (YYZ) Fly for 7h 15m Arrive at 11:10am in Lisbon (LIS)

Stay in Lisbon for 12 nights

Sun Jun 22nd 2025 Air Canada · AC 811 Depart at 12:50pm from Lisbon (LIS) Fly for 8h 15m Arrive at 4:05pm in Toronto (YYZ)

Layover in Toronto for 3h 30m

Sun Jun 22nd 2025 Air Canada · AC 595 Depart at 7:35pm from Toronto (YYZ) Fly for 3h 32m Arrive at 10:07pm in Houston (IAH)
US$1280

12:05pm - 11:10am
Mon Jun 9th 2025

17h 5m
Houston (IAH) → Lisbon (LIS)

1 Stop

12:50pm - 11:15am
Sun Jun 22nd 2025

28h 25m
Lisbon (LIS) → Houston (IAH)

1 Stop

Mon Jun 9th 2025 United Airlines · UA 8021 Depart at 12:05pm from Houston (IAH) Fly for 3h 14m Arrive at 4:19pm in Toronto (YYZ)

Layover in Toronto for 6h 36m

Mon Jun 9th 2025 United Airlines · UA 8655 Depart at 10:55pm from Toronto (YYZ) Fly for 7h 15m Arrive at 11:10am in Lisbon (LIS)

Stay in Lisbon for 12 nights

Sun Jun 22nd 2025 United Airlines · UA 8038 Depart at 12:50pm from Lisbon (LIS) Fly for 8h 15m Arrive at 4:05pm in Toronto (YYZ)

Layover in Toronto for 16h 40m

Mon Jun 23rd 2025 United Airlines · UA 8350 Depart at 8:45am from Toronto (YYZ) Fly for 3h 30m Arrive at 11:15am in Houston (IAH)
US$1333

12:05pm - 11:10am
Mon Jun 9th 2025

17h 5m
Houston (IAH) → Lisbon (LIS)

1 Stop

12:50pm - 10:07pm
Sun Jun 22nd 2025

15h 17m
Lisbon (LIS) → Houston (IAH)

1 Stop

Mon Jun 9th 2025 United Airlines · UA 8021 Depart at 12:05pm from Houston (IAH) Fly for 3h 14m Arrive at 4:19pm in Toronto (YYZ)

Layover in Toronto for 6h 36m

Mon Jun 9th 2025 United Airlines · UA 8655 Depart at 10:55pm from Toronto (YYZ) Fly for 7h 15m Arrive at 11:10am in Lisbon (LIS)

Stay in Lisbon for 12 nights

Sun Jun 22nd 2025 United Airlines · UA 8038 Depart at 12:50pm from Lisbon (LIS) Fly for 8h 15m Arrive at 4:05pm in Toronto (YYZ)

Layover in Toronto for 3h 30m

Sun Jun 22nd 2025 United Airlines · UA 8212 Depart at 7:35pm from Toronto (YYZ) Fly for 3h 32m Arrive at 10:07pm in Houston (IAH)
US$1333

7:20am - 11:10am
Mon Jun 9th 2025

21h 50m
Houston (IAH) → Lisbon (LIS)

1 Stop

12:50pm - 10:07pm
Sun Jun 22nd 2025

15h 17m
Lisbon (LIS) → Houston (IAH)

1 Stop

Mon Jun 9th 2025 United Airlines · UA 8541 Depart at 7:20am from Houston (IAH) Fly for 3h 14m Arrive at 11:34am in Toronto (YYZ)

Layover in Toronto for 11h 21m

Mon Jun 9th 2025 United Airlines · UA 8655 Depart at 10:55pm from Toronto (YYZ) Fly for 7h 15m Arrive at 11:10am in Lisbon (LIS)

Stay in Lisbon for 12 nights

Sun Jun 22nd 2025 United Airlines · UA 8038 Depart at 12:50pm from Lisbon (LIS) Fly for 8h 15m Arrive at 4:05pm in Toronto (YYZ)

Layover in Toronto for 3h 30m

Sun Jun 22nd 2025 United Airlines · UA 8212 Depart at 7:35pm from Toronto (YYZ) Fly for 3h 32m Arrive at 10:07pm in Houston (IAH)
US$1337

12:05pm - 11:10am
Mon Jun 9th 2025

17h 5m
Houston (IAH) → Lisbon (LIS)

1 Stop

12:20pm - 12:26am
Sun Jun 22nd 2025

18h 6m
Lisbon (LIS) → Houston (IAH)

1 Stop

Mon Jun 9th 2025 United Airlines · UA 8021 Depart at 12:05pm from Houston (IAH) Fly for 3h 14m Arrive at 4:19pm in Toronto (YYZ)

Layover in Toronto for 6h 36m

Mon Jun 9th 2025 United Airlines · UA 8655 Depart at 10:55pm from Toronto (YYZ) Fly for 7h 15m Arrive at 11:10am in Lisbon (LIS)

Stay in Lisbon for 12 nights

Sun Jun 22nd 2025 United Airlines · UA 943 Depart at 12:20pm from Lisbon (LIS) Fly for 8h 15m Arrive at 3:35pm in Washington, D.C. (IAD)

Layover in Washington, D.C. for 6h 31m

Sun Jun 22nd 2025 United Airlines · UA 2275 Depart at 10:06pm from Washington, D.C. (IAD) Fly for 3h 20m Arrive at 12:26am in Houston (IAH)
US$1371

4:20pm - 2:45pm
Tue Jun 10th 2025

16h 25m
Houston (IAH) → Lisbon (LIS)

2 Stops

6:40pm - 2:45pm
Tue Jun 24th 2025

26h 5m
Lisbon (LIS) → Houston (IAH)

2 Stops

Tue Jun 10th 2025 Swiss International Air Lines · LX 3065 Depart at 4:20pm from Houston (IAH) Fly for 9h 20m Arrive at 7:40am in London (LHR)

Layover in London for 1h 5m

Wed Jun 11th 2025 Swiss International Air Lines · LX 317 Depart at 8:45am from London (LHR) Fly for 1h 55m Arrive at 11:40am in Zürich (ZRH)

Layover in Zürich for 1h 10m

Wed Jun 11th 2025 Swiss International Air Lines · LX 2084 Depart at 12:50pm from Zürich (ZRH) Fly for 2h 55m Arrive at 2:45pm in Lisbon (LIS)

Stay in Lisbon for 13 nights

Tue Jun 24th 2025 Swiss International Air Lines · LX 4583 Depart at 6:40pm from Lisbon (LIS) Fly for 2h 50m Arrive at 10:30pm in Zürich (ZRH)

Layover in Zürich for 8h 50m

Wed Jun 25th 2025 Swiss International Air Lines · LX 724 Depart at 7:20am from Zürich (ZRH) Fly for 1h 40m Arrive at 9:00am in Amsterdam (AMS)

Layover in Amsterdam for 2h 0m

Wed Jun 25th 2025 Swiss International Air Lines · LX 3000 Depart at 11:00am from Amsterdam (AMS) Fly for 10h 45m Arrive at 2:45pm in Houston (IAH)
US$1377

3:30pm - 10:55am
Sat Jun 14th 2025

13h 25m
Houston (IAH) → Porto (OPO)

1 Stop

4:50pm - 12:50pm
Tue Jun 17th 2025

26h 0m
Porto (OPO) → Houston (IAH)

1 Stop

Sat Jun 14th 2025 TAP Portugal · TP 4294 Depart at 3:30pm from Houston (IAH) Fly for 4h 0m Arrive at 8:30pm in Boston (BOS)

Layover in Boston for 2h 45m

Sat Jun 14th 2025 TAP Portugal · TP 228 Depart at 11:15pm from Boston (BOS) Fly for 6h 40m Arrive at 10:55am in Porto (OPO)

Stay in Porto for 2 nights

Tue Jun 17th 2025 Turkish Airlines · TK 1452 Depart at 4:50pm from Porto (OPO) Fly for 4h 45m Arrive at 11:35pm in Istanbul (IST)

Layover in Istanbul for 8h 5m

Wed Jun 18th 2025 Turkish Airlines · TK 133 Depart at 7:40am from Istanbul (IST) Fly for 13h 10m Arrive at 12:50pm in Houston (IAH)
US$1379

12:05pm - 10:45am
Mon Jun 9th 2025

16h 40m
Houston (IAH) → Lisbon (LIS)

2 Stops

12:50pm - 10:07pm
Sun Jun 22nd 2025

15h 17m
Lisbon (LIS) → Houston (IAH)

1 Stop

Mon Jun 9th 2025 Air Canada · AC 592 Depart at 12:05pm from Houston (IAH) Fly for 3h 14m Arrive at 4:19pm in Toronto (YYZ)

Layover in Toronto for 2h 1m

Mon Jun 9th 2025 Air Canada · AC 854 Depart at 6:20pm from Toronto (YYZ) Fly for 7h 15m Arrive at 6:35am in London (LHR)

Layover in London for 1h 25m

Tue Jun 10th 2025 Air Canada · AC 2712 Depart at 8:00am from London (LHR) Fly for 2h 45m Arrive at 10:45am in Lisbon (LIS)

Stay in Lisbon for 12 nights

Sun Jun 22nd 2025 Air Canada · AC 811 Depart at 12:50pm from Lisbon (LIS) Fly for 8h 15m Arrive at 4:05pm in Toronto (YYZ)

Layover in Toronto for 3h 30m

Sun Jun 22nd 2025 Air Canada · AC 595 Depart at 7:35pm from Toronto (YYZ) Fly for 3h 32m Arrive at 10:07pm in Houston (IAH)
US$1381

3:30pm - 10:55am
Sat Jun 14th 2025

13h 25m
Houston (IAH) → Porto (OPO)

1 Stop

4:50pm - 12:50pm
Sun Jun 15th 2025

26h 0m
Porto (OPO) → Houston (IAH)

1 Stop

Sat Jun 14th 2025 TAP Portugal · TP 4294 Depart at 3:30pm from Houston (IAH) Fly for 4h 0m Arrive at 8:30pm in Boston (BOS)

Layover in Boston for 2h 45m

Sat Jun 14th 2025 TAP Portugal · TP 228 Depart at 11:15pm from Boston (BOS) Fly for 6h 40m Arrive at 10:55am in Porto (OPO)

Stay in Porto for 0 nights

Sun Jun 15th 2025 Turkish Airlines · TK 1452 Depart at 4:50pm from Porto (OPO) Fly for 4h 45m Arrive at 11:35pm in Istanbul (IST)

Layover in Istanbul for 8h 5m

Mon Jun 16th 2025 Turkish Airlines · TK 133 Depart at 7:40am from Istanbul (IST) Fly for 13h 10m Arrive at 12:50pm in Houston (IAH)
US$1381

3:30pm - 10:55am
Sat Jun 14th 2025

13h 25m
Houston (IAH) → Porto (OPO)

1 Stop

4:50pm - 7:10pm
Wed Jun 18th 2025

32h 20m
Porto (OPO) → Houston (IAH)

1 Stop

Sat Jun 14th 2025 TAP Portugal · TP 4294 Depart at 3:30pm from Houston (IAH) Fly for 4h 0m Arrive at 8:30pm in Boston (BOS)

Layover in Boston for 2h 45m

Sat Jun 14th 2025 TAP Portugal · TP 228 Depart at 11:15pm from Boston (BOS) Fly for 6h 40m Arrive at 10:55am in Porto (OPO)

Stay in Porto for 3 nights

Wed Jun 18th 2025 Turkish Airlines · TK 1452 Depart at 4:50pm from Porto (OPO) Fly for 4h 45m Arrive at 11:35pm in Istanbul (IST)

Layover in Istanbul for 14h 25m

Thu Jun 19th 2025 Turkish Airlines · TK 33 Depart at 2:00pm from Istanbul (IST) Fly for 13h 10m Arrive at 7:10pm in Houston (IAH)
US$1383

3:30pm - 10:55am
Sat Jun 14th 2025

13h 25m
Houston (IAH) → Porto (OPO)

1 Stop

4:50pm - 7:10pm
Mon Jun 16th 2025

32h 20m
Porto (OPO) → Houston (IAH)

1 Stop

Sat Jun 14th 2025 TAP Portugal · TP 4294 Depart at 3:30pm from Houston (IAH) Fly for 4h 0m Arrive at 8:30pm in Boston (BOS)

Layover in Boston for 2h 45m

Sat Jun 14th 2025 TAP Portugal · TP 228 Depart at 11:15pm from Boston (BOS) Fly for 6h 40m Arrive at 10:55am in Porto (OPO)

Stay in Porto for 1 night

Mon Jun 16th 2025 Turkish Airlines · TK 1452 Depart at 4:50pm from Porto (OPO) Fly for 4h 45m Arrive at 11:35pm in Istanbul (IST)

Layover in Istanbul for 14h 25m

Tue Jun 17th 2025 Turkish Airlines · TK 33 Depart at 2:00pm from Istanbul (IST) Fly for 13h 10m Arrive at 7:10pm in Houston (IAH)
US$1403

4:20pm - 2:45pm
Tue Jun 10th 2025

16h 25m
Houston (IAH) → Lisbon (LIS)

2 Stops

7:50pm - 2:15pm
Mon Jun 16th 2025

24h 25m
Lisbon (LIS) → Houston (IAH)

2 Stops

Tue Jun 10th 2025 Swiss International Air Lines · LX 3065 Depart at 4:20pm from Houston (IAH) Fly for 9h 20m Arrive at 7:40am in London (LHR)

Layover in London for 1h 5m

Wed Jun 11th 2025 Swiss International Air Lines · LX 317 Depart at 8:45am from London (LHR) Fly for 1h 55m Arrive at 11:40am in Zürich (ZRH)

Layover in Zürich for 1h 10m

Wed Jun 11th 2025 Swiss International Air Lines · LX 2084 Depart at 12:50pm from Zürich (ZRH) Fly for 2h 55m Arrive at 2:45pm in Lisbon (LIS)

Stay in Lisbon for 5 nights

Mon Jun 16th 2025 Swiss International Air Lines · LX 4595 Depart at 7:50pm from Lisbon (LIS) Fly for 2h 25m Arrive at 11:15pm in Geneva (GVA)

Layover in Geneva for 8h 15m

Tue Jun 17th 2025 Swiss International Air Lines · LX 352 Depart at 7:30am from Geneva (GVA) Fly for 1h 45m Arrive at 8:15am in London (LHR)

Layover in London for 1h 45m

Tue Jun 17th 2025 Swiss International Air Lines · LX 3054 Depart at 10:00am from London (LHR) Fly for 10h 15m Arrive at 2:15pm in Houston (IAH)
US$1453

8:15pm - 11:15pm
Tue Jun 10th 2025

21h 0m
Houston (IAH) → Lisbon (LIS)

2 Stops

6:40pm - 2:45pm
Tue Jun 24th 2025

26h 5m
Lisbon (LIS) → Houston (IAH)

2 Stops

Tue Jun 10th 2025 Swiss International Air Lines · LX 3051 Depart at 8:15pm from Houston (IAH) Fly for 9h 20m Arrive at 11:35am in London (LHR)

Layover in London for 2h 10m

Wed Jun 11th 2025 Swiss International Air Lines · LX 333 Depart at 1:45pm from London (LHR) Fly for 1h 45m Arrive at 4:30pm in Zürich (ZRH)

Layover in Zürich for 4h 50m

Wed Jun 11th 2025 Swiss International Air Lines · LX 2082 Depart at 9:20pm from Zürich (ZRH) Fly for 2h 55m Arrive at 11:15pm in Lisbon (LIS)

Stay in Lisbon for 12 nights

Tue Jun 24th 2025 Swiss International Air Lines · LX 4583 Depart at 6:40pm from Lisbon (LIS) Fly for 2h 50m Arrive at 10:30pm in Zürich (ZRH)

Layover in Zürich for 8h 50m

Wed Jun 25th 2025 Swiss International Air Lines · LX 724 Depart at 7:20am from Zürich (ZRH) Fly for 1h 40m Arrive at 9:00am in Amsterdam (AMS)

Layover in Amsterdam for 2h 0m

Wed Jun 25th 2025 Swiss International Air Lines · LX 3000 Depart at 11:00am from Amsterdam (AMS) Fly for 10h 45m Arrive at 2:45pm in Houston (IAH)
US$1465

4:40pm - 8:40am
Thu Jun 26th 2025

11h 0m
Houston (IAH) → Ponta Delgada (PDL)

1 Stop

11:00am - 6:04pm
Thu Jul 3rd 2025

12h 4m
Ponta Delgada (PDL) → Houston (IAH)

1 Stop

Thu Jun 26th 2025 United Airlines · UA 1646 Depart at 4:40pm from Houston (IAH) Fly for 3h 46m Arrive at 9:26pm in New York (EWR)

Layover in New York for 1h 39m

Thu Jun 26th 2025 United Airlines · UA 216 Depart at 11:05pm from New York (EWR) Fly for 5h 35m Arrive at 8:40am in Ponta Delgada (PDL)

Stay in Ponta Delgada for 6 nights

Thu Jul 3rd 2025 United Airlines · UA 217 Depart at 11:00am from Ponta Delgada (PDL) Fly for 6h 15m Arrive at 1:15pm in New York (EWR)

Layover in New York for 2h 5m

Thu Jul 3rd 2025 United Airlines · UA 2674 Depart at 3:20pm from New York (EWR) Fly for 3h 44m Arrive at 6:04pm in Houston (IAH)
US$1466

4:20pm - 2:40pm
Tue Jun 10th 2025

16h 20m
Houston (IAH) → Lisbon (LIS)

2 Stops

6:40pm - 2:45pm
Tue Jun 24th 2025

26h 5m
Lisbon (LIS) → Houston (IAH)

2 Stops

Tue Jun 10th 2025 Swiss International Air Lines · LX 3065 Depart at 4:20pm from Houston (IAH) Fly for 9h 20m Arrive at 7:40am in London (LHR)

Layover in London for 1h 15m

Wed Jun 11th 2025 Swiss International Air Lines · LX 353 Depart at 8:55am from London (LHR) Fly for 1h 40m Arrive at 11:35am in Geneva (GVA)

Layover in Geneva for 1h 25m

Wed Jun 11th 2025 Swiss International Air Lines · LX 4586 Depart at 1:00pm from Geneva (GVA) Fly for 2h 40m Arrive at 2:40pm in Lisbon (LIS)

Stay in Lisbon for 13 nights

Tue Jun 24th 2025 Swiss International Air Lines · LX 4583 Depart at 6:40pm from Lisbon (LIS) Fly for 2h 50m Arrive at 10:30pm in Zürich (ZRH)

Layover in Zürich for 8h 50m

Wed Jun 25th 2025 Swiss International Air Lines · LX 724 Depart at 7:20am from Zürich (ZRH) Fly for 1h 40m Arrive at 9:00am in Amsterdam (AMS)

Layover in Amsterdam for 2h 0m

Wed Jun 25th 2025 Swiss International Air Lines · LX 3000 Depart at 11:00am from Amsterdam (AMS) Fly for 10h 45m Arrive at 2:45pm in Houston (IAH)
US$1466

8:15pm - 8:00pm
Tue Jun 10th 2025

17h 45m
Houston (IAH) → Lisbon (LIS)

2 Stops

6:40pm - 2:45pm
Tue Jun 24th 2025

26h 5m
Lisbon (LIS) → Houston (IAH)

2 Stops

Tue Jun 10th 2025 Swiss International Air Lines · LX 3051 Depart at 8:15pm from Houston (IAH) Fly for 9h 20m Arrive at 11:35am in London (LHR)

Layover in London for 2h 50m

Wed Jun 11th 2025 Swiss International Air Lines · LX 355 Depart at 2:25pm from London (LHR) Fly for 1h 40m Arrive at 5:05pm in Geneva (GVA)

Layover in Geneva for 1h 15m

Wed Jun 11th 2025 Swiss International Air Lines · LX 4584 Depart at 6:20pm from Geneva (GVA) Fly for 2h 40m Arrive at 8:00pm in Lisbon (LIS)

Stay in Lisbon for 12 nights

Tue Jun 24th 2025 Swiss International Air Lines · LX 4583 Depart at 6:40pm from Lisbon (LIS) Fly for 2h 50m Arrive at 10:30pm in Zürich (ZRH)

Layover in Zürich for 8h 50m

Wed Jun 25th 2025 Swiss International Air Lines · LX 724 Depart at 7:20am from Zürich (ZRH) Fly for 1h 40m Arrive at 9:00am in Amsterdam (AMS)

Layover in Amsterdam for 2h 0m

Wed Jun 25th 2025 Swiss International Air Lines · LX 3000 Depart at 11:00am from Amsterdam (AMS) Fly for 10h 45m Arrive at 2:45pm in Houston (IAH)
US$1471

4:43pm - 8:40am
Fri Jun 20th 2025

10h 57m
Houston (IAH) → Ponta Delgada (PDL)

1 Stop

11:00am - 6:04pm
Fri Jun 27th 2025

12h 4m
Ponta Delgada (PDL) → Houston (IAH)

1 Stop

Fri Jun 20th 2025 United Airlines · UA 1646 Depart at 4:43pm from Houston (IAH) Fly for 3h 46m Arrive at 9:29pm in New York (EWR)

Layover in New York for 1h 36m

Fri Jun 20th 2025 United Airlines · UA 216 Depart at 11:05pm from New York (EWR) Fly for 5h 35m Arrive at 8:40am in Ponta Delgada (PDL)

Stay in Ponta Delgada for 6 nights

Fri Jun 27th 2025 United Airlines · UA 217 Depart at 11:00am from Ponta Delgada (PDL) Fly for 6h 15m Arrive at 1:15pm in New York (EWR)

Layover in New York for 2h 5m

Fri Jun 27th 2025 United Airlines · UA 2674 Depart at 3:20pm from New York (EWR) Fly for 3h 44m Arrive at 6:04pm in Houston (IAH)
US$1498

4:20pm - 2:40pm
Tue Jun 10th 2025

16h 20m
Houston (IAH) → Lisbon (LIS)

2 Stops

7:50pm - 2:15pm
Mon Jun 16th 2025

24h 25m
Lisbon (LIS) → Houston (IAH)

2 Stops

Tue Jun 10th 2025 Swiss International Air Lines · LX 3065 Depart at 4:20pm from Houston (IAH) Fly for 9h 20m Arrive at 7:40am in London (LHR)

Layover in London for 1h 15m

Wed Jun 11th 2025 Swiss International Air Lines · LX 353 Depart at 8:55am from London (LHR) Fly for 1h 40m Arrive at 11:35am in Geneva (GVA)

Layover in Geneva for 1h 25m

Wed Jun 11th 2025 Swiss International Air Lines · LX 4586 Depart at 1:00pm from Geneva (GVA) Fly for 2h 40m Arrive at 2:40pm in Lisbon (LIS)

Stay in Lisbon for 5 nights

Mon Jun 16th 2025 Swiss International Air Lines · LX 4595 Depart at 7:50pm from Lisbon (LIS) Fly for 2h 25m Arrive at 11:15pm in Geneva (GVA)

Layover in Geneva for 8h 15m

Tue Jun 17th 2025 Swiss International Air Lines · LX 352 Depart at 7:30am from Geneva (GVA) Fly for 1h 45m Arrive at 8:15am in London (LHR)

Layover in London for 1h 45m

Tue Jun 17th 2025 Swiss International Air Lines · LX 3054 Depart at 10:00am from London (LHR) Fly for 10h 15m Arrive at 2:15pm in Houston (IAH)
US$1545

4:43pm - 8:40am
Sat Jun 21st 2025

10h 57m
Houston (IAH) → Ponta Delgada (PDL)

1 Stop

11:00am - 6:04pm
Sat Jun 28th 2025

12h 4m
Ponta Delgada (PDL) → Houston (IAH)

1 Stop

Sat Jun 21st 2025 United Airlines · UA 1646 Depart at 4:43pm from Houston (IAH) Fly for 3h 46m Arrive at 9:29pm in New York (EWR)

Layover in New York for 1h 36m

Sat Jun 21st 2025 United Airlines · UA 216 Depart at 11:05pm from New York (EWR) Fly for 5h 35m Arrive at 8:40am in Ponta Delgada (PDL)

Stay in Ponta Delgada for 6 nights

Sat Jun 28th 2025 United Airlines · UA 217 Depart at 11:00am from Ponta Delgada (PDL) Fly for 6h 15m Arrive at 1:15pm in New York (EWR)

Layover in New York for 2h 5m

Sat Jun 28th 2025 United Airlines · UA 2674 Depart at 3:20pm from New York (EWR) Fly for 3h 44m Arrive at 6:04pm in Houston (IAH)
US$1596

4:30pm - 8:40am
Fri Jun 27th 2025

11h 10m
Houston (IAH) → Ponta Delgada (PDL)

1 Stop

11:00am - 6:04pm
Fri Jul 4th 2025

12h 4m
Ponta Delgada (PDL) → Houston (IAH)

1 Stop

Fri Jun 27th 2025 United Airlines · UA 1646 Depart at 4:30pm from Houston (IAH) Fly for 3h 28m Arrive at 8:58pm in New York (EWR)

Layover in New York for 2h 7m

Fri Jun 27th 2025 United Airlines · UA 216 Depart at 11:05pm from New York (EWR) Fly for 5h 35m Arrive at 8:40am in Ponta Delgada (PDL)

Stay in Ponta Delgada for 6 nights

Fri Jul 4th 2025 United Airlines · UA 217 Depart at 11:00am from Ponta Delgada (PDL) Fly for 6h 15m Arrive at 1:15pm in New York (EWR)

Layover in New York for 2h 5m

Fri Jul 4th 2025 United Airlines · UA 2674 Depart at 3:20pm from New York (EWR) Fly for 3h 44m Arrive at 6:04pm in Houston (IAH)
US$1736

4:43pm - 8:40am
Sat Jun 14th 2025

10h 57m
Houston (IAH) → Ponta Delgada (PDL)

1 Stop

11:00am - 6:51pm
Sat Jun 21st 2025

12h 51m
Ponta Delgada (PDL) → Houston (IAH)

1 Stop

Sat Jun 14th 2025 United Airlines · UA 1646 Depart at 4:43pm from Houston (IAH) Fly for 3h 46m Arrive at 9:29pm in New York (EWR)

Layover in New York for 1h 36m

Sat Jun 14th 2025 United Airlines · UA 216 Depart at 11:05pm from New York (EWR) Fly for 5h 35m Arrive at 8:40am in Ponta Delgada (PDL)

Stay in Ponta Delgada for 6 nights

Sat Jun 21st 2025 Brussels Airlines · SN 8948 Depart at 11:00am from Ponta Delgada (PDL) Fly for 6h 15m Arrive at 1:15pm in New York (EWR)

Layover in New York for 2h 44m

Sat Jun 21st 2025 Brussels Airlines · SN 8881 Depart at 3:59pm from New York (EWR) Fly for 3h 52m Arrive at 6:51pm in Houston (IAH)
US$2997

4:30pm - 8:40am
Sat Jun 28th 2025

11h 10m
Houston (IAH) → Ponta Delgada (PDL)

1 Stop

11:00am - 6:52pm
Sat Jul 5th 2025

12h 52m
Ponta Delgada (PDL) → Houston (IAH)

1 Stop

Sat Jun 28th 2025 United Airlines · UA 1646 Depart at 4:30pm from Houston (IAH) Fly for 3h 28m Arrive at 8:58pm in New York (EWR)

Layover in New York for 2h 7m

Sat Jun 28th 2025 United Airlines · UA 216 Depart at 11:05pm from New York (EWR) Fly for 5h 35m Arrive at 8:40am in Ponta Delgada (PDL)

Stay in Ponta Delgada for 6 nights

Sat Jul 5th 2025 Brussels Airlines · SN 8948 Depart at 11:00am from Ponta Delgada (PDL) Fly for 6h 15m Arrive at 1:15pm in New York (EWR)

Layover in New York for 2h 45m

Sat Jul 5th 2025 Brussels Airlines · SN 8881 Depart at 4:00pm from New York (EWR) Fly for 3h 52m Arrive at 6:52pm in Houston (IAH)

Sarah Belizaire

@sarahbb1

Have flexible travel plans or looking for alternative routes given the chaos? Check out all the connection possibilities via a super helpful site created by @ismaelyws flightlist.io thanks to @andy_travels for the recommendation #travel #flights

John Ford

@eyupitsjohn

There seem to be lots of sites launching at the moment that promise to find you cheap flights but not many have the professional finish of Flightlist by @ismaelyws #travel #flights

Roaming Sonaa

@roamingsonaa

For people wanting to maximize their trips, Flightlist is my newest travel hack for uncovering the coolest routes at irresistible prices. No stress, no annoying ads — just seamless flight booking with amazing functionality.

Andy Travels

@andy_travels

@ismaelyws Just tried out Flightlist for the first time. Really nice idea, well made, and just what I need at the moment 👍

Travel With Bender

@travelwitbender

Did you spot my recent article about how to score cheap one way flights? ✈️ FlightList is my new secret tool for discovering cheap routes, within a departure date range. Plus you can also search by country/region for departures & destinations. Powerful! 💪

Wesley Mergard

@travel.with.wes

One useful tool I've found for evaluating different departure and return dates is called FlightList.io. You can quickly scan different travel date ranges, carriers and one way flight options to easily determine the cheapest flight combinations for your trip.

Flights from Houston to Portugal (IAH to PT)

Sarah Belizaire

John Ford

Roaming Sonaa

Andy Travels

Travel With Bender

Wesley Mergard

Explore Flight Options

FlightList Blog

Flightlist Interviews 7 Travel Experts On Why They Book One Way Flights

Why I Built FlightList & Solved My Own Problem

About FlightList