Flights from Philadelphia to Seattle (PHL to SEA)

Discover more affordable routes and cheaper dates from Philadelphia to Seattle (PHL to SEA) within a date range.

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US$132

6:32pm - 9:55pm
Wed Jan 29th 2025

6h 23m
Philadelphia (PHL) → Seattle (SEA)

Direct

Wed Jan 29th 2025 Alaska Airlines · AS 443 Depart at 6:32pm from Philadelphia (PHL) Fly for 6h 23m Arrive at 9:55pm in Seattle (SEA)
US$132

6:32pm - 9:55pm
Wed Feb 12th 2025

6h 23m
Philadelphia (PHL) → Seattle (SEA)

Direct

Wed Feb 12th 2025 Alaska Airlines · AS 443 Depart at 6:32pm from Philadelphia (PHL) Fly for 6h 23m Arrive at 9:55pm in Seattle (SEA)
US$137

6:32pm - 9:55pm
Tue Feb 11th 2025

6h 23m
Philadelphia (PHL) → Seattle (SEA)

Direct

Tue Feb 11th 2025 Alaska Airlines · AS 443 Depart at 6:32pm from Philadelphia (PHL) Fly for 6h 23m Arrive at 9:55pm in Seattle (SEA)
US$137

6:32pm - 9:55pm
Tue Feb 4th 2025

6h 23m
Philadelphia (PHL) → Seattle (SEA)

Direct

Tue Feb 4th 2025 Alaska Airlines · AS 443 Depart at 6:32pm from Philadelphia (PHL) Fly for 6h 23m Arrive at 9:55pm in Seattle (SEA)
US$137

6:32pm - 9:55pm
Wed Feb 5th 2025

6h 23m
Philadelphia (PHL) → Seattle (SEA)

Direct

Wed Feb 5th 2025 Alaska Airlines · AS 443 Depart at 6:32pm from Philadelphia (PHL) Fly for 6h 23m Arrive at 9:55pm in Seattle (SEA)
US$137

6:25pm - 9:51pm
Sat Feb 15th 2025

6h 26m
Philadelphia (PHL) → Seattle (SEA)

Direct

Sat Feb 15th 2025 Alaska Airlines · AS 443 Depart at 6:25pm from Philadelphia (PHL) Fly for 6h 26m Arrive at 9:51pm in Seattle (SEA)
US$158

6:32pm - 9:55pm
Tue Jan 14th 2025

6h 23m
Philadelphia (PHL) → Seattle (SEA)

Direct

Tue Jan 14th 2025 Alaska Airlines · AS 443 Depart at 6:32pm from Philadelphia (PHL) Fly for 6h 23m Arrive at 9:55pm in Seattle (SEA)
US$158

6:32pm - 9:55pm
Tue Jan 28th 2025

6h 23m
Philadelphia (PHL) → Seattle (SEA)

Direct

Tue Jan 28th 2025 Alaska Airlines · AS 443 Depart at 6:32pm from Philadelphia (PHL) Fly for 6h 23m Arrive at 9:55pm in Seattle (SEA)
US$158

6:32pm - 9:55pm
Wed Jan 15th 2025

6h 23m
Philadelphia (PHL) → Seattle (SEA)

Direct

Wed Jan 15th 2025 Alaska Airlines · AS 443 Depart at 6:32pm from Philadelphia (PHL) Fly for 6h 23m Arrive at 9:55pm in Seattle (SEA)
US$169

6:32pm - 9:55pm
Thu Jan 30th 2025

6h 23m
Philadelphia (PHL) → Seattle (SEA)

Direct

Thu Jan 30th 2025 Alaska Airlines · AS 443 Depart at 6:32pm from Philadelphia (PHL) Fly for 6h 23m Arrive at 9:55pm in Seattle (SEA)
US$169

6:32pm - 9:55pm
Mon Jan 27th 2025

6h 23m
Philadelphia (PHL) → Seattle (SEA)

Direct

Mon Jan 27th 2025 Alaska Airlines · AS 443 Depart at 6:32pm from Philadelphia (PHL) Fly for 6h 23m Arrive at 9:55pm in Seattle (SEA)
US$169

6:32pm - 9:55pm
Mon Feb 10th 2025

6h 23m
Philadelphia (PHL) → Seattle (SEA)

Direct

Mon Feb 10th 2025 Alaska Airlines · AS 443 Depart at 6:32pm from Philadelphia (PHL) Fly for 6h 23m Arrive at 9:55pm in Seattle (SEA)
US$169

6:32pm - 9:55pm
Fri Feb 7th 2025

6h 23m
Philadelphia (PHL) → Seattle (SEA)

Direct

Fri Feb 7th 2025 Alaska Airlines · AS 443 Depart at 6:32pm from Philadelphia (PHL) Fly for 6h 23m Arrive at 9:55pm in Seattle (SEA)
US$169

6:32pm - 9:55pm
Fri Jan 24th 2025

6h 23m
Philadelphia (PHL) → Seattle (SEA)

Direct

Fri Jan 24th 2025 Alaska Airlines · AS 443 Depart at 6:32pm from Philadelphia (PHL) Fly for 6h 23m Arrive at 9:55pm in Seattle (SEA)
US$169

6:32pm - 9:55pm
Thu Jan 23rd 2025

6h 23m
Philadelphia (PHL) → Seattle (SEA)

Direct

Thu Jan 23rd 2025 Alaska Airlines · AS 443 Depart at 6:32pm from Philadelphia (PHL) Fly for 6h 23m Arrive at 9:55pm in Seattle (SEA)
US$169

6:32pm - 9:55pm
Mon Jan 13th 2025

6h 23m
Philadelphia (PHL) → Seattle (SEA)

Direct

Mon Jan 13th 2025 Alaska Airlines · AS 443 Depart at 6:32pm from Philadelphia (PHL) Fly for 6h 23m Arrive at 9:55pm in Seattle (SEA)
US$169

6:32pm - 9:55pm
Thu Feb 6th 2025

6h 23m
Philadelphia (PHL) → Seattle (SEA)

Direct

Thu Feb 6th 2025 Alaska Airlines · AS 443 Depart at 6:32pm from Philadelphia (PHL) Fly for 6h 23m Arrive at 9:55pm in Seattle (SEA)
US$169

6:32pm - 9:55pm
Fri Jan 31st 2025

6h 23m
Philadelphia (PHL) → Seattle (SEA)

Direct

Fri Jan 31st 2025 Alaska Airlines · AS 443 Depart at 6:32pm from Philadelphia (PHL) Fly for 6h 23m Arrive at 9:55pm in Seattle (SEA)
US$169

6:32pm - 9:55pm
Mon Feb 3rd 2025

6h 23m
Philadelphia (PHL) → Seattle (SEA)

Direct

Mon Feb 3rd 2025 Alaska Airlines · AS 443 Depart at 6:32pm from Philadelphia (PHL) Fly for 6h 23m Arrive at 9:55pm in Seattle (SEA)
US$169

6:25pm - 9:51pm
Thu Feb 13th 2025

6h 26m
Philadelphia (PHL) → Seattle (SEA)

Direct

Thu Feb 13th 2025 Alaska Airlines · AS 443 Depart at 6:25pm from Philadelphia (PHL) Fly for 6h 26m Arrive at 9:51pm in Seattle (SEA)
US$170

6:32pm - 9:55pm
Sun Feb 9th 2025

6h 23m
Philadelphia (PHL) → Seattle (SEA)

Direct

Sun Feb 9th 2025 Alaska Airlines · AS 443 Depart at 6:32pm from Philadelphia (PHL) Fly for 6h 23m Arrive at 9:55pm in Seattle (SEA)
US$170

6:25pm - 9:51pm
Fri Feb 14th 2025

6h 26m
Philadelphia (PHL) → Seattle (SEA)

Direct

Fri Feb 14th 2025 Alaska Airlines · AS 443 Depart at 6:25pm from Philadelphia (PHL) Fly for 6h 26m Arrive at 9:51pm in Seattle (SEA)
US$200

3:40pm - 9:11pm
Sat Jan 11th 2025

8h 31m
Philadelphia (PHL) → Seattle (SEA)

1 Stop

Sat Jan 11th 2025 United Airlines · UA 2644 Depart at 3:40pm from Philadelphia (PHL) Fly for 4h 22m Arrive at 6:02pm in Denver (DEN)

Layover in Denver for 1h 3m

Sat Jan 11th 2025 United Airlines · UA 299 Depart at 7:05pm from Denver (DEN) Fly for 3h 6m Arrive at 9:11pm in Seattle (SEA)
US$200

2:46pm - 8:31pm
Wed Jan 15th 2025

8h 45m
Philadelphia (PHL) → Seattle (SEA)

1 Stop

Wed Jan 15th 2025 United Airlines · UA 4617 Depart at 2:46pm from Philadelphia (PHL) Fly for 1h 15m Arrive at 4:01pm in Washington, D.C. (IAD)

Layover in Washington, D.C. for 1h 29m

Wed Jan 15th 2025 United Airlines · UA 326 Depart at 5:30pm from Washington, D.C. (IAD) Fly for 6h 1m Arrive at 8:31pm in Seattle (SEA)
US$200

5:10pm - 11:10pm
Sat Jan 18th 2025

9h 0m
Philadelphia (PHL) → Seattle (SEA)

1 Stop

Sat Jan 18th 2025 United Airlines · UA 308 Depart at 5:10pm from Philadelphia (PHL) Fly for 2h 31m Arrive at 6:41pm in Chicago (ORD)

Layover in Chicago for 1h 40m

Sat Jan 18th 2025 United Airlines · UA 2211 Depart at 8:21pm from Chicago (ORD) Fly for 4h 49m Arrive at 11:10pm in Seattle (SEA)
US$200

5:10pm - 11:10pm
Sat Jan 11th 2025

9h 0m
Philadelphia (PHL) → Seattle (SEA)

1 Stop

Sat Jan 11th 2025 United Airlines · UA 308 Depart at 5:10pm from Philadelphia (PHL) Fly for 2h 31m Arrive at 6:41pm in Chicago (ORD)

Layover in Chicago for 1h 40m

Sat Jan 11th 2025 United Airlines · UA 2211 Depart at 8:21pm from Chicago (ORD) Fly for 4h 49m Arrive at 11:10pm in Seattle (SEA)
US$200

2:29pm - 8:31pm
Sat Jan 11th 2025

9h 2m
Philadelphia (PHL) → Seattle (SEA)

1 Stop

Sat Jan 11th 2025 United Airlines · UA 4824 Depart at 2:29pm from Philadelphia (PHL) Fly for 1h 16m Arrive at 3:45pm in Washington, D.C. (IAD)

Layover in Washington, D.C. for 1h 45m

Sat Jan 11th 2025 United Airlines · UA 326 Depart at 5:30pm from Washington, D.C. (IAD) Fly for 6h 1m Arrive at 8:31pm in Seattle (SEA)
US$200

6:00am - 1:22pm
Sat Jan 18th 2025

10h 22m
Philadelphia (PHL) → Seattle (SEA)

1 Stop

Sat Jan 18th 2025 United Airlines · UA 1834 Depart at 6:00am from Philadelphia (PHL) Fly for 2h 31m Arrive at 7:31am in Chicago (ORD)

Layover in Chicago for 3h 4m

Sat Jan 18th 2025 United Airlines · UA 2849 Depart at 10:35am from Chicago (ORD) Fly for 4h 47m Arrive at 1:22pm in Seattle (SEA)
US$200

6:00am - 1:22pm
Sat Jan 11th 2025

10h 22m
Philadelphia (PHL) → Seattle (SEA)

1 Stop

Sat Jan 11th 2025 United Airlines · UA 1834 Depart at 6:00am from Philadelphia (PHL) Fly for 2h 31m Arrive at 7:31am in Chicago (ORD)

Layover in Chicago for 3h 4m

Sat Jan 11th 2025 United Airlines · UA 2849 Depart at 10:35am from Chicago (ORD) Fly for 4h 47m Arrive at 1:22pm in Seattle (SEA)
US$201

3:40pm - 9:11pm
Tue Jan 14th 2025

8h 31m
Philadelphia (PHL) → Seattle (SEA)

1 Stop

Tue Jan 14th 2025 United Airlines · UA 2644 Depart at 3:40pm from Philadelphia (PHL) Fly for 4h 22m Arrive at 6:02pm in Denver (DEN)

Layover in Denver for 1h 3m

Tue Jan 14th 2025 United Airlines · UA 299 Depart at 7:05pm from Denver (DEN) Fly for 3h 6m Arrive at 9:11pm in Seattle (SEA)
US$201

3:40pm - 9:11pm
Wed Jan 15th 2025

8h 31m
Philadelphia (PHL) → Seattle (SEA)

1 Stop

Wed Jan 15th 2025 United Airlines · UA 2644 Depart at 3:40pm from Philadelphia (PHL) Fly for 4h 22m Arrive at 6:02pm in Denver (DEN)

Layover in Denver for 1h 3m

Wed Jan 15th 2025 United Airlines · UA 299 Depart at 7:05pm from Denver (DEN) Fly for 3h 6m Arrive at 9:11pm in Seattle (SEA)
US$201

5:10pm - 10:53pm
Wed Jan 15th 2025

8h 43m
Philadelphia (PHL) → Seattle (SEA)

1 Stop

Wed Jan 15th 2025 United Airlines · UA 308 Depart at 5:10pm from Philadelphia (PHL) Fly for 2h 31m Arrive at 6:41pm in Chicago (ORD)

Layover in Chicago for 1h 23m

Wed Jan 15th 2025 United Airlines · UA 2211 Depart at 8:04pm from Chicago (ORD) Fly for 4h 49m Arrive at 10:53pm in Seattle (SEA)
US$201

5:10pm - 10:53pm
Tue Jan 14th 2025

8h 43m
Philadelphia (PHL) → Seattle (SEA)

1 Stop

Tue Jan 14th 2025 United Airlines · UA 308 Depart at 5:10pm from Philadelphia (PHL) Fly for 2h 31m Arrive at 6:41pm in Chicago (ORD)

Layover in Chicago for 1h 23m

Tue Jan 14th 2025 United Airlines · UA 2211 Depart at 8:04pm from Chicago (ORD) Fly for 4h 49m Arrive at 10:53pm in Seattle (SEA)
US$201

8:10am - 1:55pm
Tue Jan 14th 2025

8h 45m
Philadelphia (PHL) → Seattle (SEA)

1 Stop

Tue Jan 14th 2025 United Airlines · UA 2383 Depart at 8:10am from Philadelphia (PHL) Fly for 4h 22m Arrive at 10:32am in Denver (DEN)

Layover in Denver for 1h 18m

Tue Jan 14th 2025 United Airlines · UA 690 Depart at 11:50am from Denver (DEN) Fly for 3h 5m Arrive at 1:55pm in Seattle (SEA)
US$201

10:10am - 4:16pm
Wed Jan 15th 2025

9h 6m
Philadelphia (PHL) → Seattle (SEA)

1 Stop

Wed Jan 15th 2025 United Airlines · UA 2657 Depart at 10:10am from Philadelphia (PHL) Fly for 2h 31m Arrive at 11:41am in Chicago (ORD)

Layover in Chicago for 1h 49m

Wed Jan 15th 2025 United Airlines · UA 1485 Depart at 1:30pm from Chicago (ORD) Fly for 4h 46m Arrive at 4:16pm in Seattle (SEA)
US$201

10:10am - 4:16pm
Tue Jan 14th 2025

9h 6m
Philadelphia (PHL) → Seattle (SEA)

1 Stop

Tue Jan 14th 2025 United Airlines · UA 2657 Depart at 10:10am from Philadelphia (PHL) Fly for 2h 31m Arrive at 11:41am in Chicago (ORD)

Layover in Chicago for 1h 49m

Tue Jan 14th 2025 United Airlines · UA 1485 Depart at 1:30pm from Chicago (ORD) Fly for 4h 46m Arrive at 4:16pm in Seattle (SEA)
US$201

6:00am - 12:07pm
Tue Jan 14th 2025

9h 7m
Philadelphia (PHL) → Seattle (SEA)

1 Stop

Tue Jan 14th 2025 United Airlines · UA 1834 Depart at 6:00am from Philadelphia (PHL) Fly for 2h 31m Arrive at 7:31am in Chicago (ORD)

Layover in Chicago for 1h 49m

Tue Jan 14th 2025 United Airlines · UA 2849 Depart at 9:20am from Chicago (ORD) Fly for 4h 47m Arrive at 12:07pm in Seattle (SEA)
US$201

6:00am - 12:07pm
Wed Jan 15th 2025

9h 7m
Philadelphia (PHL) → Seattle (SEA)

1 Stop

Wed Jan 15th 2025 United Airlines · UA 1834 Depart at 6:00am from Philadelphia (PHL) Fly for 2h 31m Arrive at 7:31am in Chicago (ORD)

Layover in Chicago for 1h 49m

Wed Jan 15th 2025 United Airlines · UA 2849 Depart at 9:20am from Chicago (ORD) Fly for 4h 47m Arrive at 12:07pm in Seattle (SEA)
US$201

3:40pm - 11:09pm
Wed Jan 15th 2025

10h 29m
Philadelphia (PHL) → Seattle (SEA)

1 Stop

Wed Jan 15th 2025 United Airlines · UA 2644 Depart at 3:40pm from Philadelphia (PHL) Fly for 4h 22m Arrive at 6:02pm in Denver (DEN)

Layover in Denver for 3h 2m

Wed Jan 15th 2025 United Airlines · UA 2651 Depart at 9:04pm from Denver (DEN) Fly for 3h 5m Arrive at 11:09pm in Seattle (SEA)
US$205

12:44pm - 9:11pm
Sat Jan 11th 2025

11h 27m
Philadelphia (PHL) → Seattle (SEA)

2 Stops

Sat Jan 11th 2025 United Airlines · UA 1274 Depart at 12:44pm from Philadelphia (PHL) Fly for 3h 56m Arrive at 3:40pm in Houston (IAH)

Layover in Houston for 0h 44m

Sat Jan 11th 2025 United Airlines · UA 1274 Depart at 4:24pm from Houston (IAH) Fly for 2h 45m Arrive at 6:09pm in Denver (DEN)

Layover in Denver for 0h 56m

Sat Jan 11th 2025 United Airlines · UA 299 Depart at 7:05pm from Denver (DEN) Fly for 3h 6m Arrive at 9:11pm in Seattle (SEA)
US$205

10:10am - 7:08pm
Sat Jan 18th 2025

11h 58m
Philadelphia (PHL) → Seattle (SEA)

2 Stops

Sat Jan 18th 2025 United Airlines · UA 2657 Depart at 10:10am from Philadelphia (PHL) Fly for 2h 31m Arrive at 11:41am in Chicago (ORD)

Layover in Chicago for 1h 4m

Sat Jan 18th 2025 United Airlines · UA 1878 Depart at 12:45pm from Chicago (ORD) Fly for 4h 53m Arrive at 3:38pm in San Francisco (SFO)

Layover in San Francisco for 1h 10m

Sat Jan 18th 2025 United Airlines · UA 2603 Depart at 4:48pm from San Francisco (SFO) Fly for 2h 20m Arrive at 7:08pm in Seattle (SEA)
US$205

10:10am - 7:08pm
Wed Jan 15th 2025

11h 58m
Philadelphia (PHL) → Seattle (SEA)

2 Stops

Wed Jan 15th 2025 United Airlines · UA 2657 Depart at 10:10am from Philadelphia (PHL) Fly for 2h 31m Arrive at 11:41am in Chicago (ORD)

Layover in Chicago for 1h 4m

Wed Jan 15th 2025 United Airlines · UA 1878 Depart at 12:45pm from Chicago (ORD) Fly for 4h 53m Arrive at 3:38pm in San Francisco (SFO)

Layover in San Francisco for 1h 10m

Wed Jan 15th 2025 United Airlines · UA 2603 Depart at 4:48pm from San Francisco (SFO) Fly for 2h 20m Arrive at 7:08pm in Seattle (SEA)
US$205

10:10am - 7:08pm
Sat Jan 11th 2025

11h 58m
Philadelphia (PHL) → Seattle (SEA)

2 Stops

Sat Jan 11th 2025 United Airlines · UA 2657 Depart at 10:10am from Philadelphia (PHL) Fly for 2h 31m Arrive at 11:41am in Chicago (ORD)

Layover in Chicago for 1h 4m

Sat Jan 11th 2025 United Airlines · UA 1878 Depart at 12:45pm from Chicago (ORD) Fly for 4h 53m Arrive at 3:38pm in San Francisco (SFO)

Layover in San Francisco for 1h 10m

Sat Jan 11th 2025 United Airlines · UA 2603 Depart at 4:48pm from San Francisco (SFO) Fly for 2h 20m Arrive at 7:08pm in Seattle (SEA)
US$206

6:15am - 1:22pm
Sat Jan 11th 2025

10h 7m
Philadelphia (PHL) → Seattle (SEA)

2 Stops

Sat Jan 11th 2025 United Airlines · UA 4614 Depart at 6:15am from Philadelphia (PHL) Fly for 1h 15m Arrive at 7:30am in Washington, D.C. (IAD)

Layover in Washington, D.C. for 0h 55m

Sat Jan 11th 2025 United Airlines · UA 2440 Depart at 8:25am from Washington, D.C. (IAD) Fly for 2h 19m Arrive at 9:44am in Chicago (ORD)

Layover in Chicago for 0h 51m

Sat Jan 11th 2025 United Airlines · UA 2849 Depart at 10:35am from Chicago (ORD) Fly for 4h 47m Arrive at 1:22pm in Seattle (SEA)
US$206

10:10am - 6:15pm
Tue Jan 14th 2025

11h 5m
Philadelphia (PHL) → Seattle (SEA)

2 Stops

Tue Jan 14th 2025 United Airlines · UA 2657 Depart at 10:10am from Philadelphia (PHL) Fly for 2h 31m Arrive at 11:41am in Chicago (ORD)

Layover in Chicago for 1h 4m

Tue Jan 14th 2025 United Airlines · UA 1491 Depart at 12:45pm from Chicago (ORD) Fly for 2h 51m Arrive at 2:36pm in Denver (DEN)

Layover in Denver for 1h 34m

Tue Jan 14th 2025 United Airlines · UA 745 Depart at 4:10pm from Denver (DEN) Fly for 3h 5m Arrive at 6:15pm in Seattle (SEA)
US$206

10:10am - 6:15pm
Sat Jan 11th 2025

11h 5m
Philadelphia (PHL) → Seattle (SEA)

2 Stops

Sat Jan 11th 2025 United Airlines · UA 2657 Depart at 10:10am from Philadelphia (PHL) Fly for 2h 31m Arrive at 11:41am in Chicago (ORD)

Layover in Chicago for 1h 4m

Sat Jan 11th 2025 United Airlines · UA 1491 Depart at 12:45pm from Chicago (ORD) Fly for 2h 51m Arrive at 2:36pm in Denver (DEN)

Layover in Denver for 1h 34m

Sat Jan 11th 2025 United Airlines · UA 745 Depart at 4:10pm from Denver (DEN) Fly for 3h 5m Arrive at 6:15pm in Seattle (SEA)
US$206

2:29pm - 11:10pm
Sat Jan 11th 2025

11h 41m
Philadelphia (PHL) → Seattle (SEA)

2 Stops

Sat Jan 11th 2025 United Airlines · UA 4824 Depart at 2:29pm from Philadelphia (PHL) Fly for 1h 16m Arrive at 3:45pm in Washington, D.C. (IAD)

Layover in Washington, D.C. for 1h 51m

Sat Jan 11th 2025 United Airlines · UA 1117 Depart at 5:36pm from Washington, D.C. (IAD) Fly for 2h 19m Arrive at 6:55pm in Chicago (ORD)

Layover in Chicago for 1h 26m

Sat Jan 11th 2025 United Airlines · UA 2211 Depart at 8:21pm from Chicago (ORD) Fly for 4h 49m Arrive at 11:10pm in Seattle (SEA)
US$211

6:32pm - 9:55pm
Thu Jan 16th 2025

6h 23m
Philadelphia (PHL) → Seattle (SEA)

Direct

Thu Jan 16th 2025 Alaska Airlines · AS 443 Depart at 6:32pm from Philadelphia (PHL) Fly for 6h 23m Arrive at 9:55pm in Seattle (SEA)
US$211

6:32pm - 9:55pm
Sun Jan 19th 2025

6h 23m
Philadelphia (PHL) → Seattle (SEA)

Direct

Sun Jan 19th 2025 Alaska Airlines · AS 443 Depart at 6:32pm from Philadelphia (PHL) Fly for 6h 23m Arrive at 9:55pm in Seattle (SEA)
US$211

6:32pm - 9:55pm
Sun Jan 26th 2025

6h 23m
Philadelphia (PHL) → Seattle (SEA)

Direct

Sun Jan 26th 2025 Alaska Airlines · AS 443 Depart at 6:32pm from Philadelphia (PHL) Fly for 6h 23m Arrive at 9:55pm in Seattle (SEA)
US$211

6:32pm - 9:55pm
Fri Jan 17th 2025

6h 23m
Philadelphia (PHL) → Seattle (SEA)

Direct

Fri Jan 17th 2025 Alaska Airlines · AS 443 Depart at 6:32pm from Philadelphia (PHL) Fly for 6h 23m Arrive at 9:55pm in Seattle (SEA)
US$211

6:32pm - 9:55pm
Tue Jan 21st 2025

6h 23m
Philadelphia (PHL) → Seattle (SEA)

Direct

Tue Jan 21st 2025 Alaska Airlines · AS 443 Depart at 6:32pm from Philadelphia (PHL) Fly for 6h 23m Arrive at 9:55pm in Seattle (SEA)
US$233

3:40pm - 9:11pm
Thu Jan 9th 2025

8h 31m
Philadelphia (PHL) → Seattle (SEA)

1 Stop

Thu Jan 9th 2025 United Airlines · UA 2644 Depart at 3:40pm from Philadelphia (PHL) Fly for 4h 22m Arrive at 6:02pm in Denver (DEN)

Layover in Denver for 1h 3m

Thu Jan 9th 2025 United Airlines · UA 299 Depart at 7:05pm from Denver (DEN) Fly for 3h 6m Arrive at 9:11pm in Seattle (SEA)
US$233

3:40pm - 9:11pm
Fri Jan 10th 2025

8h 31m
Philadelphia (PHL) → Seattle (SEA)

1 Stop

Fri Jan 10th 2025 United Airlines · UA 2644 Depart at 3:40pm from Philadelphia (PHL) Fly for 4h 22m Arrive at 6:02pm in Denver (DEN)

Layover in Denver for 1h 3m

Fri Jan 10th 2025 United Airlines · UA 299 Depart at 7:05pm from Denver (DEN) Fly for 3h 6m Arrive at 9:11pm in Seattle (SEA)
US$233

5:10pm - 10:53pm
Fri Jan 10th 2025

8h 43m
Philadelphia (PHL) → Seattle (SEA)

1 Stop

Fri Jan 10th 2025 United Airlines · UA 308 Depart at 5:10pm from Philadelphia (PHL) Fly for 2h 31m Arrive at 6:41pm in Chicago (ORD)

Layover in Chicago for 1h 23m

Fri Jan 10th 2025 United Airlines · UA 2211 Depart at 8:04pm from Chicago (ORD) Fly for 4h 49m Arrive at 10:53pm in Seattle (SEA)
US$233

5:10pm - 10:53pm
Mon Jan 13th 2025

8h 43m
Philadelphia (PHL) → Seattle (SEA)

1 Stop

Mon Jan 13th 2025 United Airlines · UA 308 Depart at 5:10pm from Philadelphia (PHL) Fly for 2h 31m Arrive at 6:41pm in Chicago (ORD)

Layover in Chicago for 1h 23m

Mon Jan 13th 2025 United Airlines · UA 2211 Depart at 8:04pm from Chicago (ORD) Fly for 4h 49m Arrive at 10:53pm in Seattle (SEA)
US$233

5:10pm - 10:53pm
Sun Jan 12th 2025

8h 43m
Philadelphia (PHL) → Seattle (SEA)

1 Stop

Sun Jan 12th 2025 United Airlines · UA 308 Depart at 5:10pm from Philadelphia (PHL) Fly for 2h 31m Arrive at 6:41pm in Chicago (ORD)

Layover in Chicago for 1h 23m

Sun Jan 12th 2025 United Airlines · UA 2211 Depart at 8:04pm from Chicago (ORD) Fly for 4h 49m Arrive at 10:53pm in Seattle (SEA)
US$233

5:10pm - 10:53pm
Thu Jan 9th 2025

8h 43m
Philadelphia (PHL) → Seattle (SEA)

1 Stop

Thu Jan 9th 2025 United Airlines · UA 308 Depart at 5:10pm from Philadelphia (PHL) Fly for 2h 31m Arrive at 6:41pm in Chicago (ORD)

Layover in Chicago for 1h 23m

Thu Jan 9th 2025 United Airlines · UA 2211 Depart at 8:04pm from Chicago (ORD) Fly for 4h 49m Arrive at 10:53pm in Seattle (SEA)
US$233

2:46pm - 8:31pm
Mon Jan 13th 2025

8h 45m
Philadelphia (PHL) → Seattle (SEA)

1 Stop

Mon Jan 13th 2025 United Airlines · UA 4617 Depart at 2:46pm from Philadelphia (PHL) Fly for 1h 15m Arrive at 4:01pm in Washington, D.C. (IAD)

Layover in Washington, D.C. for 1h 29m

Mon Jan 13th 2025 United Airlines · UA 326 Depart at 5:30pm from Washington, D.C. (IAD) Fly for 6h 1m Arrive at 8:31pm in Seattle (SEA)
US$254

6:32pm - 9:55pm
Mon Jan 20th 2025

6h 23m
Philadelphia (PHL) → Seattle (SEA)

Direct

Mon Jan 20th 2025 Alaska Airlines · AS 443 Depart at 6:32pm from Philadelphia (PHL) Fly for 6h 23m Arrive at 9:55pm in Seattle (SEA)
US$254

6:32pm - 9:55pm
Fri Jan 10th 2025

6h 23m
Philadelphia (PHL) → Seattle (SEA)

Direct

Fri Jan 10th 2025 Alaska Airlines · AS 443 Depart at 6:32pm from Philadelphia (PHL) Fly for 6h 23m Arrive at 9:55pm in Seattle (SEA)
US$254

6:32pm - 9:55pm
Wed Jan 22nd 2025

6h 23m
Philadelphia (PHL) → Seattle (SEA)

Direct

Wed Jan 22nd 2025 Alaska Airlines · AS 443 Depart at 6:32pm from Philadelphia (PHL) Fly for 6h 23m Arrive at 9:55pm in Seattle (SEA)
US$254

6:32pm - 9:55pm
Thu Jan 9th 2025

6h 23m
Philadelphia (PHL) → Seattle (SEA)

Direct

Thu Jan 9th 2025 Alaska Airlines · AS 443 Depart at 6:32pm from Philadelphia (PHL) Fly for 6h 23m Arrive at 9:55pm in Seattle (SEA)
US$254

6:32pm - 9:55pm
Sun Feb 2nd 2025

6h 23m
Philadelphia (PHL) → Seattle (SEA)

Direct

Sun Feb 2nd 2025 Alaska Airlines · AS 443 Depart at 6:32pm from Philadelphia (PHL) Fly for 6h 23m Arrive at 9:55pm in Seattle (SEA)
US$307

6:32pm - 9:55pm
Sun Jan 12th 2025

6h 23m
Philadelphia (PHL) → Seattle (SEA)

Direct

Sun Jan 12th 2025 Alaska Airlines · AS 443 Depart at 6:32pm from Philadelphia (PHL) Fly for 6h 23m Arrive at 9:55pm in Seattle (SEA)
US$2127

11:10am - 5:05pm
Sun Jan 12th 2025

32h 55m
Philadelphia (PHL) → Seattle (SEA)

2 Stops

Sun Jan 12th 2025 Turkish Airlines · TK 8922 Depart at 11:10am from Philadelphia (PHL) Fly for 1h 20m Arrive at 12:30pm in Boston (BOS)

Layover in Boston for 7h 30m

Sun Jan 12th 2025 Turkish Airlines · TK 82 Depart at 8:00pm from Boston (BOS) Fly for 9h 20m Arrive at 1:20pm in Istanbul (IST)

Layover in Istanbul for 2h 0m

Mon Jan 13th 2025 Turkish Airlines · TK 203 Depart at 3:20pm from Istanbul (IST) Fly for 12h 45m Arrive at 5:05pm in Seattle (SEA)
US$2180

11:10am - 5:05pm
Fri Jan 10th 2025

32h 55m
Philadelphia (PHL) → Seattle (SEA)

2 Stops

Fri Jan 10th 2025 Turkish Airlines · TK 8922 Depart at 11:10am from Philadelphia (PHL) Fly for 1h 20m Arrive at 12:30pm in Boston (BOS)

Layover in Boston for 7h 30m

Fri Jan 10th 2025 Turkish Airlines · TK 82 Depart at 8:00pm from Boston (BOS) Fly for 9h 20m Arrive at 1:20pm in Istanbul (IST)

Layover in Istanbul for 2h 0m

Sat Jan 11th 2025 Turkish Airlines · TK 203 Depart at 3:20pm from Istanbul (IST) Fly for 12h 45m Arrive at 5:05pm in Seattle (SEA)
US$2460

6:40pm - 4:55pm
Tue Jan 14th 2025

25h 15m
Philadelphia (PHL) → Seattle (SEA)

1 Stop

Tue Jan 14th 2025 Finnair · AY 5466 Depart at 6:40pm from Philadelphia (PHL) Fly for 6h 55m Arrive at 6:35am in London (LHR)

Layover in London for 8h 25m

Wed Jan 15th 2025 Finnair · AY 5449 Depart at 3:00pm from London (LHR) Fly for 9h 55m Arrive at 4:55pm in Seattle (SEA)

Sarah Belizaire

@sarahbb1

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John Ford

@eyupitsjohn

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Roaming Sonaa

@roamingsonaa

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Andy Travels

@andy_travels

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Travel With Bender

@travelwitbender

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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 Philadelphia to Seattle (PHL to SEA)

Sarah Belizaire

John Ford

Roaming Sonaa

Andy Travels

Travel With Bender

Wesley Mergard

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