Flights from Washington to South Korea (IAD to KR)

Discover more affordable routes and cheaper dates from Washington to South Korea (IAD to KR) within a date range.

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US$478

6:45pm - 9:35pm
Fri Sep 19th 2025

37h 50m
Washington, D.C. (IAD) → Seoul (ICN)

2 Stops

Fri Sep 19th 2025 WestJet · WS 1619 Depart at 6:45pm from Washington, D.C. (IAD) Fly for 4h 54m Arrive at 9:39pm in Calgary (YYC)

Layover in Calgary for 1h 56m

Fri Sep 19th 2025 WestJet · WS 135 Depart at 11:35pm from Calgary (YYC) Fly for 1h 36m Arrive at 12:11am in Vancouver (YVR)

Layover in Vancouver for 17h 14m

Sat Sep 20th 2025 Tway Airlines · TW 532 Depart at 5:25pm from Vancouver (YVR) Fly for 12h 10m Arrive at 9:35pm in Seoul (ICN)
US$508

2:25pm - 6:45pm
Wed Sep 17th 2025

39h 20m
Washington, D.C. (IAD) → Seoul (ICN)

2 Stops

Wed Sep 17th 2025 Air Canada · AC 8619 Depart at 2:25pm from Washington, D.C. (IAD) Fly for 1h 32m Arrive at 3:57pm in Toronto (YYZ)

Layover in Toronto for 6h 28m

Wed Sep 17th 2025 WestJet · WS 679 Depart at 10:25pm from Toronto (YYZ) Fly for 4h 19m Arrive at 12:44am in Calgary (YYC)

Layover in Calgary for 15h 11m

Thu Sep 18th 2025 WestJet · WS 86 Depart at 3:55pm from Calgary (YYC) Fly for 11h 50m Arrive at 6:45pm in Seoul (ICN)
US$512

2:25pm - 6:45pm
Wed Sep 17th 2025

39h 20m
Washington, D.C. (IAD) → Seoul (ICN)

2 Stops

Wed Sep 17th 2025 Air Canada · AC 8619 Depart at 2:25pm from Washington, D.C. (IAD) Fly for 1h 32m Arrive at 3:57pm in Toronto (YYZ)

Layover in Toronto for 17h 3m

Thu Sep 18th 2025 WestJet · WS 651 Depart at 9:00am from Toronto (YYZ) Fly for 4h 21m Arrive at 11:21am in Calgary (YYC)

Layover in Calgary for 4h 34m

Thu Sep 18th 2025 WestJet · WS 86 Depart at 3:55pm from Calgary (YYC) Fly for 11h 50m Arrive at 6:45pm in Seoul (ICN)
US$530

5:08pm - 6:45pm
Thu Sep 18th 2025

36h 37m
Washington, D.C. (IAD) → Seoul (ICN)

2 Stops

Thu Sep 18th 2025 Frontier Airlines · F9 1081 Depart at 5:08pm from Washington, D.C. (IAD) Fly for 1h 58m Arrive at 7:06pm in Atlanta (ATL)

Layover in Atlanta for 13h 24m

Fri Sep 19th 2025 WestJet · WS 1593 Depart at 8:30am from Atlanta (ATL) Fly for 4h 49m Arrive at 11:19am in Calgary (YYC)

Layover in Calgary for 4h 36m

Fri Sep 19th 2025 WestJet · WS 86 Depart at 3:55pm from Calgary (YYC) Fly for 11h 50m Arrive at 6:45pm in Seoul (ICN)
US$530

6:00am - 6:45pm
Thu Sep 18th 2025

47h 45m
Washington, D.C. (IAD) → Seoul (ICN)

2 Stops

Thu Sep 18th 2025 Frontier Airlines · F9 4707 Depart at 6:00am from Washington, D.C. (IAD) Fly for 1h 58m Arrive at 7:58am in Atlanta (ATL)

Layover in Atlanta for 9h 17m

Thu Sep 18th 2025 WestJet · WS 1591 Depart at 5:15pm from Atlanta (ATL) Fly for 4h 45m Arrive at 8:00pm in Calgary (YYC)

Layover in Calgary for 19h 55m

Fri Sep 19th 2025 WestJet · WS 86 Depart at 3:55pm from Calgary (YYC) Fly for 11h 50m Arrive at 6:45pm in Seoul (ICN)
US$547

9:00am - 8:30pm
Tue Oct 21st 2025

46h 30m
Washington, D.C. (IAD) → Seoul (ICN)

2 Stops

Tue Oct 21st 2025 Hawaiian Airlines · HA 4968 Depart at 9:00am from Washington, D.C. (IAD) Fly for 5h 38m Arrive at 11:38am in Seattle (SEA)

Layover in Seattle for 1h 2m

Tue Oct 21st 2025 Hawaiian Airlines · HA 6901 Depart at 12:40pm from Seattle (SEA) Fly for 2h 15m Arrive at 2:55pm in San Francisco (SFO)

Layover in San Francisco for 24h 35m

Wed Oct 22nd 2025 Air Premia · YP 112 Depart at 3:30pm from San Francisco (SFO) Fly for 13h 0m Arrive at 8:30pm in Seoul (ICN)
US$547

5:52pm - 8:30pm
Sat Sep 20th 2025

37h 38m
Washington, D.C. (IAD) → Seoul (ICN)

2 Stops

Sat Sep 20th 2025 Hawaiian Airlines · HA 4966 Depart at 5:52pm from Washington, D.C. (IAD) Fly for 5h 27m Arrive at 8:19pm in San Diego (SAN)

Layover in San Diego for 1h 40m

Sat Sep 20th 2025 Hawaiian Airlines · HA 6543 Depart at 9:59pm from San Diego (SAN) Fly for 1h 41m Arrive at 11:40pm in San Francisco (SFO)

Layover in San Francisco for 15h 50m

Sun Sep 21st 2025 Air Premia · YP 112 Depart at 3:30pm from San Francisco (SFO) Fly for 13h 0m Arrive at 8:30pm in Seoul (ICN)
US$547

5:52pm - 8:30pm
Tue Sep 16th 2025

37h 38m
Washington, D.C. (IAD) → Seoul (ICN)

2 Stops

Tue Sep 16th 2025 Hawaiian Airlines · HA 4966 Depart at 5:52pm from Washington, D.C. (IAD) Fly for 5h 27m Arrive at 8:19pm in San Diego (SAN)

Layover in San Diego for 1h 59m

Tue Sep 16th 2025 Hawaiian Airlines · HA 6543 Depart at 10:18pm from San Diego (SAN) Fly for 1h 41m Arrive at 11:59pm in San Francisco (SFO)

Layover in San Francisco for 15h 31m

Wed Sep 17th 2025 Air Premia · YP 112 Depart at 3:30pm from San Francisco (SFO) Fly for 13h 0m Arrive at 8:30pm in Seoul (ICN)
US$547

9:00am - 8:30pm
Sat Oct 25th 2025

46h 30m
Washington, D.C. (IAD) → Seoul (ICN)

2 Stops

Sat Oct 25th 2025 Hawaiian Airlines · HA 4968 Depart at 9:00am from Washington, D.C. (IAD) Fly for 5h 38m Arrive at 11:38am in Seattle (SEA)

Layover in Seattle for 1h 2m

Sat Oct 25th 2025 Hawaiian Airlines · HA 6901 Depart at 12:40pm from Seattle (SEA) Fly for 2h 15m Arrive at 2:55pm in San Francisco (SFO)

Layover in San Francisco for 24h 35m

Sun Oct 26th 2025 Air Premia · YP 112 Depart at 3:30pm from San Francisco (SFO) Fly for 13h 0m Arrive at 8:30pm in Seoul (ICN)
US$558

5:52pm - 8:30pm
Tue Sep 23rd 2025

37h 38m
Washington, D.C. (IAD) → Seoul (ICN)

2 Stops

Tue Sep 23rd 2025 Alaska Airlines · AS 507 Depart at 5:52pm from Washington, D.C. (IAD) Fly for 5h 27m Arrive at 8:19pm in San Diego (SAN)

Layover in San Diego for 1h 59m

Tue Sep 23rd 2025 Alaska Airlines · AS 3006 Depart at 10:18pm from San Diego (SAN) Fly for 1h 41m Arrive at 11:59pm in San Francisco (SFO)

Layover in San Francisco for 15h 31m

Wed Sep 24th 2025 Air Premia · YP 112 Depart at 3:30pm from San Francisco (SFO) Fly for 13h 0m Arrive at 8:30pm in Seoul (ICN)
US$560

10:10pm - 9:05am
Mon Oct 27th 2025

21h 55m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Mon Oct 27th 2025 Turkish Airlines · TK 8 Depart at 10:10pm from Washington, D.C. (IAD) Fly for 10h 10m Arrive at 3:20pm in Istanbul (IST)

Layover in Istanbul for 1h 50m

Tue Oct 28th 2025 Turkish Airlines · TK 20 Depart at 5:10pm from Istanbul (IST) Fly for 9h 55m Arrive at 9:05am in Seoul (ICN)
US$560

9:40pm - 8:40am
Thu Sep 25th 2025

22h 0m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Thu Sep 25th 2025 Turkish Airlines · TK 8 Depart at 9:40pm from Washington, D.C. (IAD) Fly for 10h 10m Arrive at 2:50pm in Istanbul (IST)

Layover in Istanbul for 1h 55m

Fri Sep 26th 2025 Turkish Airlines · TK 20 Depart at 4:45pm from Istanbul (IST) Fly for 9h 55m Arrive at 8:40am in Seoul (ICN)
US$560

9:40pm - 8:40am
Mon Sep 15th 2025

22h 0m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Mon Sep 15th 2025 Turkish Airlines · TK 8 Depart at 9:40pm from Washington, D.C. (IAD) Fly for 10h 10m Arrive at 2:50pm in Istanbul (IST)

Layover in Istanbul for 1h 55m

Tue Sep 16th 2025 Turkish Airlines · TK 20 Depart at 4:45pm from Istanbul (IST) Fly for 9h 55m Arrive at 8:40am in Seoul (ICN)
US$560

1:30pm - 8:40am
Thu Sep 25th 2025

30h 10m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Thu Sep 25th 2025 Turkish Airlines · TK 188 Depart at 1:30pm from Washington, D.C. (IAD) Fly for 10h 5m Arrive at 6:35am in Istanbul (IST)

Layover in Istanbul for 10h 10m

Fri Sep 26th 2025 Turkish Airlines · TK 20 Depart at 4:45pm from Istanbul (IST) Fly for 9h 55m Arrive at 8:40am in Seoul (ICN)
US$560

1:30pm - 8:40am
Mon Sep 15th 2025

30h 10m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Mon Sep 15th 2025 Turkish Airlines · TK 188 Depart at 1:30pm from Washington, D.C. (IAD) Fly for 10h 5m Arrive at 6:35am in Istanbul (IST)

Layover in Istanbul for 10h 10m

Tue Sep 16th 2025 Turkish Airlines · TK 20 Depart at 4:45pm from Istanbul (IST) Fly for 9h 55m Arrive at 8:40am in Seoul (ICN)
US$560

9:40pm - 5:40pm
Wed Sep 17th 2025

31h 0m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Wed Sep 17th 2025 Turkish Airlines · TK 8 Depart at 9:40pm from Washington, D.C. (IAD) Fly for 10h 10m Arrive at 2:50pm in Istanbul (IST)

Layover in Istanbul for 10h 55m

Fri Sep 19th 2025 Turkish Airlines · TK 90 Depart at 1:45am from Istanbul (IST) Fly for 9h 55m Arrive at 5:40pm in Seoul (ICN)
US$560

9:40pm - 5:40pm
Tue Sep 16th 2025

31h 0m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Tue Sep 16th 2025 Turkish Airlines · TK 8 Depart at 9:40pm from Washington, D.C. (IAD) Fly for 10h 10m Arrive at 2:50pm in Istanbul (IST)

Layover in Istanbul for 10h 55m

Thu Sep 18th 2025 Turkish Airlines · TK 90 Depart at 1:45am from Istanbul (IST) Fly for 9h 55m Arrive at 5:40pm in Seoul (ICN)
US$560

10:10pm - 6:20pm
Thu Oct 30th 2025

31h 10m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Thu Oct 30th 2025 Turkish Airlines · TK 8 Depart at 10:10pm from Washington, D.C. (IAD) Fly for 10h 10m Arrive at 3:20pm in Istanbul (IST)

Layover in Istanbul for 10h 55m

Sat Nov 1st 2025 Turkish Airlines · TK 90 Depart at 2:15am from Istanbul (IST) Fly for 10h 5m Arrive at 6:20pm in Seoul (ICN)
US$560

6:09pm - 6:45pm
Sat Sep 27th 2025

35h 36m
Washington, D.C. (IAD) → Seoul (ICN)

2 Stops

Sat Sep 27th 2025 Hawaiian Airlines · HA 4836 Depart at 6:09pm from Washington, D.C. (IAD) Fly for 5h 42m Arrive at 8:51pm in Seattle (SEA)

Layover in Seattle for 10h 14m

Sun Sep 28th 2025 WestJet · WS 1551 Depart at 7:05am from Seattle (SEA) Fly for 1h 40m Arrive at 9:45am in Calgary (YYC)

Layover in Calgary for 6h 10m

Sun Sep 28th 2025 WestJet · WS 86 Depart at 3:55pm from Calgary (YYC) Fly for 11h 50m Arrive at 6:45pm in Seoul (ICN)
US$563

6:09pm - 6:45pm
Wed Sep 17th 2025

35h 36m
Washington, D.C. (IAD) → Seoul (ICN)

2 Stops

Wed Sep 17th 2025 Hawaiian Airlines · HA 4836 Depart at 6:09pm from Washington, D.C. (IAD) Fly for 5h 42m Arrive at 8:51pm in Seattle (SEA)

Layover in Seattle for 10h 14m

Thu Sep 18th 2025 WestJet · WS 1551 Depart at 7:05am from Seattle (SEA) Fly for 1h 40m Arrive at 9:45am in Calgary (YYC)

Layover in Calgary for 6h 10m

Thu Sep 18th 2025 WestJet · WS 86 Depart at 3:55pm from Calgary (YYC) Fly for 11h 50m Arrive at 6:45pm in Seoul (ICN)
US$570

6:09pm - 8:30pm
Thu Sep 25th 2025

37h 21m
Washington, D.C. (IAD) → Seoul (ICN)

2 Stops

Thu Sep 25th 2025 Hawaiian Airlines · HA 4836 Depart at 6:09pm from Washington, D.C. (IAD) Fly for 5h 42m Arrive at 8:51pm in Seattle (SEA)

Layover in Seattle for 0h 49m

Thu Sep 25th 2025 Hawaiian Airlines · HA 6897 Depart at 9:40pm from Seattle (SEA) Fly for 2h 19m Arrive at 11:59pm in San Francisco (SFO)

Layover in San Francisco for 15h 31m

Fri Sep 26th 2025 Air Premia · YP 112 Depart at 3:30pm from San Francisco (SFO) Fly for 13h 0m Arrive at 8:30pm in Seoul (ICN)
US$581

10:10pm - 6:20pm
Sun Oct 26th 2025

31h 10m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Sun Oct 26th 2025 Turkish Airlines · TK 8 Depart at 10:10pm from Washington, D.C. (IAD) Fly for 10h 10m Arrive at 3:20pm in Istanbul (IST)

Layover in Istanbul for 10h 55m

Tue Oct 28th 2025 Turkish Airlines · TK 90 Depart at 2:15am from Istanbul (IST) Fly for 10h 5m Arrive at 6:20pm in Seoul (ICN)
US$583

6:45pm - 6:45pm
Fri Sep 19th 2025

35h 0m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Fri Sep 19th 2025 WestJet · WS 1619 Depart at 6:45pm from Washington, D.C. (IAD) Fly for 4h 54m Arrive at 9:39pm in Calgary (YYC)

Layover in Calgary for 18h 16m

Sat Sep 20th 2025 WestJet · WS 86 Depart at 3:55pm from Calgary (YYC) Fly for 11h 50m Arrive at 6:45pm in Seoul (ICN)
US$584

6:45pm - 6:45pm
Fri Sep 26th 2025

35h 0m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Fri Sep 26th 2025 WestJet · WS 1619 Depart at 6:45pm from Washington, D.C. (IAD) Fly for 4h 54m Arrive at 9:39pm in Calgary (YYC)

Layover in Calgary for 18h 16m

Sat Sep 27th 2025 WestJet · WS 86 Depart at 3:55pm from Calgary (YYC) Fly for 11h 50m Arrive at 6:45pm in Seoul (ICN)
US$584

6:09pm - 6:45pm
Sat Sep 20th 2025

35h 36m
Washington, D.C. (IAD) → Seoul (ICN)

2 Stops

Sat Sep 20th 2025 Hawaiian Airlines · HA 4836 Depart at 6:09pm from Washington, D.C. (IAD) Fly for 5h 42m Arrive at 8:51pm in Seattle (SEA)

Layover in Seattle for 10h 14m

Sun Sep 21st 2025 WestJet · WS 1551 Depart at 7:05am from Seattle (SEA) Fly for 1h 40m Arrive at 9:45am in Calgary (YYC)

Layover in Calgary for 6h 10m

Sun Sep 21st 2025 WestJet · WS 86 Depart at 3:55pm from Calgary (YYC) Fly for 11h 50m Arrive at 6:45pm in Seoul (ICN)
US$586

9:40pm - 5:40pm
Tue Oct 21st 2025

31h 0m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Tue Oct 21st 2025 Turkish Airlines · TK 8 Depart at 9:40pm from Washington, D.C. (IAD) Fly for 10h 10m Arrive at 2:50pm in Istanbul (IST)

Layover in Istanbul for 10h 55m

Thu Oct 23rd 2025 Turkish Airlines · TK 90 Depart at 1:45am from Istanbul (IST) Fly for 9h 55m Arrive at 5:40pm in Seoul (ICN)
US$587

10:10pm - 6:20pm
Tue Oct 28th 2025

31h 10m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Tue Oct 28th 2025 Turkish Airlines · TK 8 Depart at 10:10pm from Washington, D.C. (IAD) Fly for 10h 10m Arrive at 3:20pm in Istanbul (IST)

Layover in Istanbul for 10h 55m

Thu Oct 30th 2025 Turkish Airlines · TK 90 Depart at 2:15am from Istanbul (IST) Fly for 10h 5m Arrive at 6:20pm in Seoul (ICN)
US$588

9:40pm - 5:40pm
Tue Sep 23rd 2025

31h 0m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Tue Sep 23rd 2025 Turkish Airlines · TK 8 Depart at 9:40pm from Washington, D.C. (IAD) Fly for 10h 10m Arrive at 2:50pm in Istanbul (IST)

Layover in Istanbul for 10h 55m

Thu Sep 25th 2025 Turkish Airlines · TK 90 Depart at 1:45am from Istanbul (IST) Fly for 9h 55m Arrive at 5:40pm in Seoul (ICN)
US$588

10:10pm - 6:20pm
Wed Oct 29th 2025

31h 10m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Wed Oct 29th 2025 Turkish Airlines · TK 8 Depart at 10:10pm from Washington, D.C. (IAD) Fly for 10h 10m Arrive at 3:20pm in Istanbul (IST)

Layover in Istanbul for 10h 55m

Fri Oct 31st 2025 Turkish Airlines · TK 90 Depart at 2:15am from Istanbul (IST) Fly for 10h 5m Arrive at 6:20pm in Seoul (ICN)
US$599

9:10pm - 9:05am
Mon Nov 3rd 2025

21h 55m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Mon Nov 3rd 2025 Turkish Airlines · TK 8 Depart at 9:10pm from Washington, D.C. (IAD) Fly for 10h 10m Arrive at 3:20pm in Istanbul (IST)

Layover in Istanbul for 1h 50m

Tue Nov 4th 2025 Turkish Airlines · TK 20 Depart at 5:10pm from Istanbul (IST) Fly for 9h 55m Arrive at 9:05am in Seoul (ICN)
US$599

9:40pm - 8:40am
Wed Sep 17th 2025

22h 0m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Wed Sep 17th 2025 Turkish Airlines · TK 8 Depart at 9:40pm from Washington, D.C. (IAD) Fly for 10h 10m Arrive at 2:50pm in Istanbul (IST)

Layover in Istanbul for 1h 55m

Thu Sep 18th 2025 Turkish Airlines · TK 20 Depart at 4:45pm from Istanbul (IST) Fly for 9h 55m Arrive at 8:40am in Seoul (ICN)
US$599

9:40pm - 8:40am
Wed Oct 22nd 2025

22h 0m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Wed Oct 22nd 2025 Turkish Airlines · TK 8 Depart at 9:40pm from Washington, D.C. (IAD) Fly for 10h 10m Arrive at 2:50pm in Istanbul (IST)

Layover in Istanbul for 1h 55m

Thu Oct 23rd 2025 Turkish Airlines · TK 20 Depart at 4:45pm from Istanbul (IST) Fly for 9h 55m Arrive at 8:40am in Seoul (ICN)
US$599

1:30pm - 8:40am
Wed Oct 22nd 2025

30h 10m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Wed Oct 22nd 2025 Turkish Airlines · TK 188 Depart at 1:30pm from Washington, D.C. (IAD) Fly for 10h 5m Arrive at 6:35am in Istanbul (IST)

Layover in Istanbul for 10h 10m

Thu Oct 23rd 2025 Turkish Airlines · TK 20 Depart at 4:45pm from Istanbul (IST) Fly for 9h 55m Arrive at 8:40am in Seoul (ICN)
US$602

10:10pm - 6:20pm
Sat Oct 25th 2025

31h 10m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Sat Oct 25th 2025 Turkish Airlines · TK 8 Depart at 10:10pm from Washington, D.C. (IAD) Fly for 10h 10m Arrive at 3:20pm in Istanbul (IST)

Layover in Istanbul for 10h 55m

Mon Oct 27th 2025 Turkish Airlines · TK 90 Depart at 2:15am from Istanbul (IST) Fly for 10h 5m Arrive at 6:20pm in Seoul (ICN)
US$635

5:08pm - 8:40am
Mon Sep 15th 2025

26h 32m
Washington, D.C. (IAD) → Seoul (ICN)

2 Stops

Mon Sep 15th 2025 Frontier Airlines · F9 1081 Depart at 5:08pm from Washington, D.C. (IAD) Fly for 1h 58m Arrive at 7:06pm in Atlanta (ATL)

Layover in Atlanta for 2h 39m

Mon Sep 15th 2025 Turkish Airlines · TK 32 Depart at 9:45pm from Atlanta (ATL) Fly for 10h 55m Arrive at 3:40pm in Istanbul (IST)

Layover in Istanbul for 1h 5m

Tue Sep 16th 2025 Turkish Airlines · TK 20 Depart at 4:45pm from Istanbul (IST) Fly for 9h 55m Arrive at 8:40am in Seoul (ICN)
US$637

9:40pm - 5:40pm
Mon Sep 15th 2025

31h 0m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Mon Sep 15th 2025 Turkish Airlines · TK 8 Depart at 9:40pm from Washington, D.C. (IAD) Fly for 10h 10m Arrive at 2:50pm in Istanbul (IST)

Layover in Istanbul for 10h 55m

Wed Sep 17th 2025 Turkish Airlines · TK 90 Depart at 1:45am from Istanbul (IST) Fly for 9h 55m Arrive at 5:40pm in Seoul (ICN)
US$639

11:00am - 5:45am
Tue Sep 30th 2025

29h 45m
Washington, D.C. (IAD) → Seoul (ICN)

2 Stops

Tue Sep 30th 2025 Air India Limited · AI 104 Depart at 11:00am from Washington, D.C. (IAD) Fly for 14h 15m Arrive at 10:45am in New Delhi (DEL)

Layover in New Delhi for 2h 15m

Wed Oct 1st 2025 Air India Limited · AI 388 Depart at 1:00pm from New Delhi (DEL) Fly for 5h 25m Arrive at 7:55pm in Ho Chi Minh City (SGN)

Layover in Ho Chi Minh City for 2h 45m

Wed Oct 1st 2025 VietJet Air · VJ 864 Depart at 10:40pm from Ho Chi Minh City (SGN) Fly for 5h 5m Arrive at 5:45am in Seoul (ICN)
US$640

6:25am - 9:35pm
Tue Oct 21st 2025

26h 10m
Washington, D.C. (IAD) → Seoul (ICN)

2 Stops

Tue Oct 21st 2025 Alaska Airlines · AS 351 Depart at 6:25am from Washington, D.C. (IAD) Fly for 5h 43m Arrive at 9:08am in Seattle (SEA)

Layover in Seattle for 2h 31m

Tue Oct 21st 2025 Alaska Airlines · AS 925 Depart at 11:39am from Seattle (SEA) Fly for 1h 9m Arrive at 12:48pm in Vancouver (YVR)

Layover in Vancouver for 4h 37m

Tue Oct 21st 2025 Tway Airlines · TW 532 Depart at 5:25pm from Vancouver (YVR) Fly for 12h 10m Arrive at 9:35pm in Seoul (ICN)
US$642

10:10pm - 9:05am
Sat Nov 1st 2025

21h 55m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Sat Nov 1st 2025 Turkish Airlines · TK 8 Depart at 10:10pm from Washington, D.C. (IAD) Fly for 10h 10m Arrive at 3:20pm in Istanbul (IST)

Layover in Istanbul for 1h 50m

Sun Nov 2nd 2025 Turkish Airlines · TK 20 Depart at 5:10pm from Istanbul (IST) Fly for 9h 55m Arrive at 9:05am in Seoul (ICN)
US$642

10:10pm - 9:05am
Sat Oct 25th 2025

21h 55m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Sat Oct 25th 2025 Turkish Airlines · TK 8 Depart at 10:10pm from Washington, D.C. (IAD) Fly for 10h 10m Arrive at 3:20pm in Istanbul (IST)

Layover in Istanbul for 1h 50m

Sun Oct 26th 2025 Turkish Airlines · TK 20 Depart at 5:10pm from Istanbul (IST) Fly for 9h 55m Arrive at 9:05am in Seoul (ICN)
US$642

9:40pm - 8:40am
Sat Sep 27th 2025

22h 0m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Sat Sep 27th 2025 Turkish Airlines · TK 8 Depart at 9:40pm from Washington, D.C. (IAD) Fly for 10h 10m Arrive at 2:50pm in Istanbul (IST)

Layover in Istanbul for 1h 55m

Sun Sep 28th 2025 Turkish Airlines · TK 20 Depart at 4:45pm from Istanbul (IST) Fly for 9h 55m Arrive at 8:40am in Seoul (ICN)
US$645

5:08pm - 8:40am
Thu Sep 25th 2025

26h 32m
Washington, D.C. (IAD) → Seoul (ICN)

2 Stops

Thu Sep 25th 2025 Frontier Airlines · F9 1081 Depart at 5:08pm from Washington, D.C. (IAD) Fly for 1h 58m Arrive at 7:06pm in Atlanta (ATL)

Layover in Atlanta for 2h 39m

Thu Sep 25th 2025 Turkish Airlines · TK 32 Depart at 9:45pm from Atlanta (ATL) Fly for 10h 55m Arrive at 3:40pm in Istanbul (IST)

Layover in Istanbul for 1h 5m

Fri Sep 26th 2025 Turkish Airlines · TK 20 Depart at 4:45pm from Istanbul (IST) Fly for 9h 55m Arrive at 8:40am in Seoul (ICN)
US$645

5:08pm - 8:40am
Thu Sep 18th 2025

26h 32m
Washington, D.C. (IAD) → Seoul (ICN)

2 Stops

Thu Sep 18th 2025 Frontier Airlines · F9 1081 Depart at 5:08pm from Washington, D.C. (IAD) Fly for 1h 58m Arrive at 7:06pm in Atlanta (ATL)

Layover in Atlanta for 2h 39m

Thu Sep 18th 2025 Turkish Airlines · TK 32 Depart at 9:45pm from Atlanta (ATL) Fly for 10h 55m Arrive at 3:40pm in Istanbul (IST)

Layover in Istanbul for 1h 5m

Fri Sep 19th 2025 Turkish Airlines · TK 20 Depart at 4:45pm from Istanbul (IST) Fly for 9h 55m Arrive at 8:40am in Seoul (ICN)
US$650

9:40pm - 8:40am
Thu Sep 18th 2025

22h 0m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Thu Sep 18th 2025 Turkish Airlines · TK 8 Depart at 9:40pm from Washington, D.C. (IAD) Fly for 10h 10m Arrive at 2:50pm in Istanbul (IST)

Layover in Istanbul for 1h 55m

Fri Sep 19th 2025 Turkish Airlines · TK 20 Depart at 4:45pm from Istanbul (IST) Fly for 9h 55m Arrive at 8:40am in Seoul (ICN)
US$667

7:00am - 6:35pm
Wed Sep 17th 2025

22h 35m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Wed Sep 17th 2025 Hawaiian Airlines · HA 4967 Depart at 7:00am from Washington, D.C. (IAD) Fly for 5h 40m Arrive at 9:40am in Seattle (SEA)

Layover in Seattle for 5h 10m

Wed Sep 17th 2025 Hawaiian Airlines · HA 871 Depart at 2:50pm from Seattle (SEA) Fly for 11h 45m Arrive at 6:35pm in Seoul (ICN)
US$671

9:00am - 6:35pm
Wed Sep 17th 2025

20h 35m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Wed Sep 17th 2025 Hawaiian Airlines · HA 4968 Depart at 9:00am from Washington, D.C. (IAD) Fly for 5h 43m Arrive at 11:43am in Seattle (SEA)

Layover in Seattle for 3h 7m

Wed Sep 17th 2025 Hawaiian Airlines · HA 871 Depart at 2:50pm from Seattle (SEA) Fly for 11h 45m Arrive at 6:35pm in Seoul (ICN)
US$671

7:43am - 6:35pm
Sat Nov 1st 2025

21h 52m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Sat Nov 1st 2025 Hawaiian Airlines · HA 4967 Depart at 7:43am from Washington, D.C. (IAD) Fly for 5h 46m Arrive at 10:29am in Seattle (SEA)

Layover in Seattle for 4h 16m

Sat Nov 1st 2025 Hawaiian Airlines · HA 871 Depart at 2:45pm from Seattle (SEA) Fly for 11h 50m Arrive at 6:35pm in Seoul (ICN)
US$671

7:43am - 6:35pm
Wed Oct 29th 2025

21h 52m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Wed Oct 29th 2025 Hawaiian Airlines · HA 4967 Depart at 7:43am from Washington, D.C. (IAD) Fly for 5h 46m Arrive at 10:29am in Seattle (SEA)

Layover in Seattle for 4h 16m

Wed Oct 29th 2025 Hawaiian Airlines · HA 871 Depart at 2:45pm from Seattle (SEA) Fly for 11h 50m Arrive at 6:35pm in Seoul (ICN)
US$671

7:43am - 6:35pm
Thu Oct 30th 2025

21h 52m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Thu Oct 30th 2025 Hawaiian Airlines · HA 4967 Depart at 7:43am from Washington, D.C. (IAD) Fly for 5h 46m Arrive at 10:29am in Seattle (SEA)

Layover in Seattle for 4h 16m

Thu Oct 30th 2025 Hawaiian Airlines · HA 871 Depart at 2:45pm from Seattle (SEA) Fly for 11h 50m Arrive at 6:35pm in Seoul (ICN)
US$671

7:00am - 6:35pm
Wed Sep 24th 2025

22h 35m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Wed Sep 24th 2025 Hawaiian Airlines · HA 4967 Depart at 7:00am from Washington, D.C. (IAD) Fly for 5h 40m Arrive at 9:40am in Seattle (SEA)

Layover in Seattle for 5h 10m

Wed Sep 24th 2025 Hawaiian Airlines · HA 871 Depart at 2:50pm from Seattle (SEA) Fly for 11h 45m Arrive at 6:35pm in Seoul (ICN)
US$680

9:00am - 6:35pm
Wed Sep 17th 2025

20h 35m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Wed Sep 17th 2025 Alaska Airlines · AS 375 Depart at 9:00am from Washington, D.C. (IAD) Fly for 5h 43m Arrive at 11:43am in Seattle (SEA)

Layover in Seattle for 3h 7m

Wed Sep 17th 2025 Alaska Airlines · AS 8471 Depart at 2:50pm from Seattle (SEA) Fly for 11h 45m Arrive at 6:35pm in Seoul (ICN)
US$685

7:43am - 6:35pm
Fri Oct 31st 2025

21h 52m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Fri Oct 31st 2025 Alaska Airlines · AS 351 Depart at 7:43am from Washington, D.C. (IAD) Fly for 5h 46m Arrive at 10:29am in Seattle (SEA)

Layover in Seattle for 4h 16m

Fri Oct 31st 2025 Alaska Airlines · AS 8471 Depart at 2:45pm from Seattle (SEA) Fly for 11h 50m Arrive at 6:35pm in Seoul (ICN)
US$694

9:00am - 9:35pm
Sat Sep 20th 2025

23h 35m
Washington, D.C. (IAD) → Seoul (ICN)

2 Stops

Sat Sep 20th 2025 Alaska Airlines · AS 375 Depart at 9:00am from Washington, D.C. (IAD) Fly for 5h 43m Arrive at 11:43am in Seattle (SEA)

Layover in Seattle for 1h 29m

Sat Sep 20th 2025 Alaska Airlines · AS 2381 Depart at 1:12pm from Seattle (SEA) Fly for 0h 56m Arrive at 2:08pm in Vancouver (YVR)

Layover in Vancouver for 3h 17m

Sat Sep 20th 2025 Tway Airlines · TW 532 Depart at 5:25pm from Vancouver (YVR) Fly for 12h 10m Arrive at 9:35pm in Seoul (ICN)
US$716

6:11pm - 4:20am
Tue Oct 28th 2025

21h 9m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Tue Oct 28th 2025 Hawaiian Airlines · HA 4836 Depart at 6:11pm from Washington, D.C. (IAD) Fly for 5h 53m Arrive at 9:04pm in Seattle (SEA)

Layover in Seattle for 3h 6m

Wed Oct 29th 2025 Asiana Airlines · OZ 271 Depart at 12:10am from Seattle (SEA) Fly for 12h 10m Arrive at 4:20am in Seoul (ICN)
US$717

9:00am - 5:55pm
Tue Sep 23rd 2025

19h 55m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Tue Sep 23rd 2025 Hawaiian Airlines · HA 4968 Depart at 9:00am from Washington, D.C. (IAD) Fly for 5h 43m Arrive at 11:43am in Seattle (SEA)

Layover in Seattle for 2h 32m

Tue Sep 23rd 2025 Asiana Airlines · OZ 271 Depart at 2:15pm from Seattle (SEA) Fly for 11h 40m Arrive at 5:55pm in Seoul (ICN)
US$717

7:00am - 5:55pm
Wed Oct 1st 2025

21h 55m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Wed Oct 1st 2025 Hawaiian Airlines · HA 4967 Depart at 7:00am from Washington, D.C. (IAD) Fly for 5h 40m Arrive at 9:40am in Seattle (SEA)

Layover in Seattle for 4h 35m

Wed Oct 1st 2025 Asiana Airlines · OZ 271 Depart at 2:15pm from Seattle (SEA) Fly for 11h 40m Arrive at 5:55pm in Seoul (ICN)
US$723

7:00am - 4:30pm
Tue Sep 30th 2025

20h 30m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Tue Sep 30th 2025 Hawaiian Airlines · HA 4967 Depart at 7:00am from Washington, D.C. (IAD) Fly for 5h 40m Arrive at 9:40am in Seattle (SEA)

Layover in Seattle for 3h 5m

Tue Sep 30th 2025 Korean Air · KE 5020 Depart at 12:45pm from Seattle (SEA) Fly for 11h 45m Arrive at 4:30pm in Seoul (ICN)
US$723

7:00am - 5:55pm
Sat Sep 20th 2025

21h 55m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Sat Sep 20th 2025 Alaska Airlines · AS 351 Depart at 7:00am from Washington, D.C. (IAD) Fly for 5h 38m Arrive at 9:38am in Seattle (SEA)

Layover in Seattle for 4h 37m

Sat Sep 20th 2025 Asiana Airlines · OZ 271 Depart at 2:15pm from Seattle (SEA) Fly for 11h 40m Arrive at 5:55pm in Seoul (ICN)
US$724

9:00am - 6:35pm
Wed Sep 24th 2025

20h 35m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Wed Sep 24th 2025 Hawaiian Airlines · HA 4968 Depart at 9:00am from Washington, D.C. (IAD) Fly for 5h 43m Arrive at 11:43am in Seattle (SEA)

Layover in Seattle for 3h 7m

Wed Sep 24th 2025 Hawaiian Airlines · HA 871 Depart at 2:50pm from Seattle (SEA) Fly for 11h 45m Arrive at 6:35pm in Seoul (ICN)
US$726

9:00am - 5:55pm
Tue Oct 21st 2025

19h 55m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Tue Oct 21st 2025 Hawaiian Airlines · HA 4968 Depart at 9:00am from Washington, D.C. (IAD) Fly for 5h 38m Arrive at 11:38am in Seattle (SEA)

Layover in Seattle for 2h 37m

Tue Oct 21st 2025 Asiana Airlines · OZ 271 Depart at 2:15pm from Seattle (SEA) Fly for 11h 40m Arrive at 5:55pm in Seoul (ICN)
US$726

6:11pm - 4:20am
Sat Nov 1st 2025

21h 9m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Sat Nov 1st 2025 Hawaiian Airlines · HA 4836 Depart at 6:11pm from Washington, D.C. (IAD) Fly for 5h 53m Arrive at 9:04pm in Seattle (SEA)

Layover in Seattle for 3h 6m

Sun Nov 2nd 2025 Asiana Airlines · OZ 271 Depart at 12:10am from Seattle (SEA) Fly for 12h 10m Arrive at 4:20am in Seoul (ICN)
US$728

7:00am - 4:30pm
Sat Sep 20th 2025

20h 30m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Sat Sep 20th 2025 Alaska Airlines · AS 351 Depart at 7:00am from Washington, D.C. (IAD) Fly for 5h 38m Arrive at 9:38am in Seattle (SEA)

Layover in Seattle for 3h 7m

Sat Sep 20th 2025 Korean Air · KE 5020 Depart at 12:45pm from Seattle (SEA) Fly for 11h 45m Arrive at 4:30pm in Seoul (ICN)
US$729

9:00am - 6:35pm
Sat Sep 27th 2025

20h 35m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Sat Sep 27th 2025 Hawaiian Airlines · HA 4968 Depart at 9:00am from Washington, D.C. (IAD) Fly for 5h 43m Arrive at 11:43am in Seattle (SEA)

Layover in Seattle for 3h 7m

Sat Sep 27th 2025 Hawaiian Airlines · HA 871 Depart at 2:50pm from Seattle (SEA) Fly for 11h 45m Arrive at 6:35pm in Seoul (ICN)
US$730

7:00am - 4:30pm
Sat Sep 27th 2025

20h 30m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Sat Sep 27th 2025 Alaska Airlines · AS 351 Depart at 7:00am from Washington, D.C. (IAD) Fly for 5h 38m Arrive at 9:38am in Seattle (SEA)

Layover in Seattle for 3h 7m

Sat Sep 27th 2025 Korean Air · KE 5020 Depart at 12:45pm from Seattle (SEA) Fly for 11h 45m Arrive at 4:30pm in Seoul (ICN)
US$730

9:00am - 6:35pm
Wed Oct 22nd 2025

20h 35m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Wed Oct 22nd 2025 Hawaiian Airlines · HA 4968 Depart at 9:00am from Washington, D.C. (IAD) Fly for 5h 38m Arrive at 11:38am in Seattle (SEA)

Layover in Seattle for 3h 17m

Wed Oct 22nd 2025 Hawaiian Airlines · HA 871 Depart at 2:55pm from Seattle (SEA) Fly for 11h 40m Arrive at 6:35pm in Seoul (ICN)
US$732

9:00am - 6:35pm
Sat Oct 25th 2025

20h 35m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Sat Oct 25th 2025 Hawaiian Airlines · HA 4968 Depart at 9:00am from Washington, D.C. (IAD) Fly for 5h 38m Arrive at 11:38am in Seattle (SEA)

Layover in Seattle for 3h 17m

Sat Oct 25th 2025 Alaska Airlines · AS 8471 Depart at 2:55pm from Seattle (SEA) Fly for 11h 40m Arrive at 6:35pm in Seoul (ICN)
US$734

9:00am - 5:55pm
Sat Sep 27th 2025

19h 55m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Sat Sep 27th 2025 Hawaiian Airlines · HA 4968 Depart at 9:00am from Washington, D.C. (IAD) Fly for 5h 43m Arrive at 11:43am in Seattle (SEA)

Layover in Seattle for 2h 32m

Sat Sep 27th 2025 Asiana Airlines · OZ 271 Depart at 2:15pm from Seattle (SEA) Fly for 11h 40m Arrive at 5:55pm in Seoul (ICN)
US$734

9:00am - 5:55pm
Tue Sep 16th 2025

19h 55m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Tue Sep 16th 2025 Hawaiian Airlines · HA 4968 Depart at 9:00am from Washington, D.C. (IAD) Fly for 5h 43m Arrive at 11:43am in Seattle (SEA)

Layover in Seattle for 2h 32m

Tue Sep 16th 2025 Asiana Airlines · OZ 271 Depart at 2:15pm from Seattle (SEA) Fly for 11h 40m Arrive at 5:55pm in Seoul (ICN)
US$734

7:00am - 4:40pm
Wed Sep 24th 2025

20h 40m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Wed Sep 24th 2025 Hawaiian Airlines · HA 4967 Depart at 7:00am from Washington, D.C. (IAD) Fly for 5h 40m Arrive at 9:40am in Seattle (SEA)

Layover in Seattle for 3h 10m

Wed Sep 24th 2025 Korean Air · KE 42 Depart at 12:50pm from Seattle (SEA) Fly for 11h 50m Arrive at 4:40pm in Seoul (ICN)
US$734

7:00am - 4:40pm
Tue Sep 23rd 2025

20h 40m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Tue Sep 23rd 2025 Hawaiian Airlines · HA 4967 Depart at 7:00am from Washington, D.C. (IAD) Fly for 5h 40m Arrive at 9:40am in Seattle (SEA)

Layover in Seattle for 3h 10m

Tue Sep 23rd 2025 Korean Air · KE 42 Depart at 12:50pm from Seattle (SEA) Fly for 11h 50m Arrive at 4:40pm in Seoul (ICN)
US$734

6:25am - 4:40pm
Sat Oct 25th 2025

21h 15m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Sat Oct 25th 2025 Hawaiian Airlines · HA 4967 Depart at 6:25am from Washington, D.C. (IAD) Fly for 5h 43m Arrive at 9:08am in Seattle (SEA)

Layover in Seattle for 3h 42m

Sat Oct 25th 2025 Korean Air · KE 42 Depart at 12:50pm from Seattle (SEA) Fly for 11h 50m Arrive at 4:40pm in Seoul (ICN)
US$734

6:25am - 4:40pm
Wed Oct 22nd 2025

21h 15m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Wed Oct 22nd 2025 Hawaiian Airlines · HA 4967 Depart at 6:25am from Washington, D.C. (IAD) Fly for 5h 43m Arrive at 9:08am in Seattle (SEA)

Layover in Seattle for 3h 42m

Wed Oct 22nd 2025 Korean Air · KE 42 Depart at 12:50pm from Seattle (SEA) Fly for 11h 50m Arrive at 4:40pm in Seoul (ICN)
US$734

6:25am - 4:40pm
Tue Oct 21st 2025

21h 15m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Tue Oct 21st 2025 Hawaiian Airlines · HA 4967 Depart at 6:25am from Washington, D.C. (IAD) Fly for 5h 43m Arrive at 9:08am in Seattle (SEA)

Layover in Seattle for 3h 42m

Tue Oct 21st 2025 Korean Air · KE 42 Depart at 12:50pm from Seattle (SEA) Fly for 11h 50m Arrive at 4:40pm in Seoul (ICN)
US$737

9:00am - 5:55pm
Wed Sep 24th 2025

19h 55m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Wed Sep 24th 2025 Hawaiian Airlines · HA 4968 Depart at 9:00am from Washington, D.C. (IAD) Fly for 5h 43m Arrive at 11:43am in Seattle (SEA)

Layover in Seattle for 2h 32m

Wed Sep 24th 2025 Asiana Airlines · OZ 271 Depart at 2:15pm from Seattle (SEA) Fly for 11h 40m Arrive at 5:55pm in Seoul (ICN)
US$738

9:00am - 5:55pm
Sun Sep 21st 2025

19h 55m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Sun Sep 21st 2025 Hawaiian Airlines · HA 4968 Depart at 9:00am from Washington, D.C. (IAD) Fly for 5h 43m Arrive at 11:43am in Seattle (SEA)

Layover in Seattle for 2h 32m

Sun Sep 21st 2025 Asiana Airlines · OZ 271 Depart at 2:15pm from Seattle (SEA) Fly for 11h 40m Arrive at 5:55pm in Seoul (ICN)
US$739

9:00am - 5:55pm
Wed Oct 1st 2025

19h 55m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Wed Oct 1st 2025 Hawaiian Airlines · HA 4968 Depart at 9:00am from Washington, D.C. (IAD) Fly for 5h 43m Arrive at 11:43am in Seattle (SEA)

Layover in Seattle for 2h 32m

Wed Oct 1st 2025 Asiana Airlines · OZ 271 Depart at 2:15pm from Seattle (SEA) Fly for 11h 40m Arrive at 5:55pm in Seoul (ICN)
US$739

9:00am - 5:55pm
Mon Sep 29th 2025

19h 55m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Mon Sep 29th 2025 Hawaiian Airlines · HA 4968 Depart at 9:00am from Washington, D.C. (IAD) Fly for 5h 43m Arrive at 11:43am in Seattle (SEA)

Layover in Seattle for 2h 32m

Mon Sep 29th 2025 Asiana Airlines · OZ 271 Depart at 2:15pm from Seattle (SEA) Fly for 11h 40m Arrive at 5:55pm in Seoul (ICN)
US$739

7:00am - 4:40pm
Wed Sep 17th 2025

20h 40m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Wed Sep 17th 2025 Alaska Airlines · AS 351 Depart at 7:00am from Washington, D.C. (IAD) Fly for 5h 40m Arrive at 9:40am in Seattle (SEA)

Layover in Seattle for 3h 10m

Wed Sep 17th 2025 Korean Air · KE 42 Depart at 12:50pm from Seattle (SEA) Fly for 11h 50m Arrive at 4:40pm in Seoul (ICN)
US$742

9:00am - 5:55pm
Wed Sep 17th 2025

19h 55m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Wed Sep 17th 2025 Alaska Airlines · AS 375 Depart at 9:00am from Washington, D.C. (IAD) Fly for 5h 43m Arrive at 11:43am in Seattle (SEA)

Layover in Seattle for 2h 32m

Wed Sep 17th 2025 Asiana Airlines · OZ 271 Depart at 2:15pm from Seattle (SEA) Fly for 11h 40m Arrive at 5:55pm in Seoul (ICN)
US$745

9:00am - 5:55pm
Sat Sep 20th 2025

19h 55m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Sat Sep 20th 2025 Alaska Airlines · AS 375 Depart at 9:00am from Washington, D.C. (IAD) Fly for 5h 43m Arrive at 11:43am in Seattle (SEA)

Layover in Seattle for 2h 32m

Sat Sep 20th 2025 Asiana Airlines · OZ 271 Depart at 2:15pm from Seattle (SEA) Fly for 11h 40m Arrive at 5:55pm in Seoul (ICN)
US$745

7:00am - 4:30pm
Thu Sep 18th 2025

20h 30m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Thu Sep 18th 2025 Hawaiian Airlines · HA 4967 Depart at 7:00am from Washington, D.C. (IAD) Fly for 5h 40m Arrive at 9:40am in Seattle (SEA)

Layover in Seattle for 3h 5m

Thu Sep 18th 2025 Korean Air · KE 5020 Depart at 12:45pm from Seattle (SEA) Fly for 11h 45m Arrive at 4:30pm in Seoul (ICN)
US$745

7:00am - 4:30pm
Thu Oct 2nd 2025

20h 30m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Thu Oct 2nd 2025 Hawaiian Airlines · HA 4967 Depart at 7:00am from Washington, D.C. (IAD) Fly for 5h 40m Arrive at 9:40am in Seattle (SEA)

Layover in Seattle for 2h 45m

Thu Oct 2nd 2025 Korean Air · KE 5020 Depart at 12:25pm from Seattle (SEA) Fly for 12h 5m Arrive at 4:30pm in Seoul (ICN)
US$745

7:00am - 4:30pm
Thu Sep 25th 2025

20h 30m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Thu Sep 25th 2025 Hawaiian Airlines · HA 4967 Depart at 7:00am from Washington, D.C. (IAD) Fly for 5h 40m Arrive at 9:40am in Seattle (SEA)

Layover in Seattle for 3h 5m

Thu Sep 25th 2025 Korean Air · KE 5020 Depart at 12:45pm from Seattle (SEA) Fly for 11h 45m Arrive at 4:30pm in Seoul (ICN)
US$746

9:00am - 5:55pm
Thu Oct 23rd 2025

19h 55m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Thu Oct 23rd 2025 Hawaiian Airlines · HA 4968 Depart at 9:00am from Washington, D.C. (IAD) Fly for 5h 38m Arrive at 11:38am in Seattle (SEA)

Layover in Seattle for 2h 37m

Thu Oct 23rd 2025 Asiana Airlines · OZ 271 Depart at 2:15pm from Seattle (SEA) Fly for 11h 40m Arrive at 5:55pm in Seoul (ICN)
US$746

9:00am - 5:55pm
Mon Sep 22nd 2025

19h 55m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Mon Sep 22nd 2025 Alaska Airlines · AS 375 Depart at 9:00am from Washington, D.C. (IAD) Fly for 5h 43m Arrive at 11:43am in Seattle (SEA)

Layover in Seattle for 2h 32m

Mon Sep 22nd 2025 Asiana Airlines · OZ 271 Depart at 2:15pm from Seattle (SEA) Fly for 11h 40m Arrive at 5:55pm in Seoul (ICN)
US$747

9:00am - 5:55pm
Mon Sep 15th 2025

19h 55m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Mon Sep 15th 2025 Hawaiian Airlines · HA 4968 Depart at 9:00am from Washington, D.C. (IAD) Fly for 5h 43m Arrive at 11:43am in Seattle (SEA)

Layover in Seattle for 2h 32m

Mon Sep 15th 2025 Asiana Airlines · OZ 271 Depart at 2:15pm from Seattle (SEA) Fly for 11h 40m Arrive at 5:55pm in Seoul (ICN)
US$747

7:00am - 4:30pm
Sun Sep 21st 2025

20h 30m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Sun Sep 21st 2025 Hawaiian Airlines · HA 4967 Depart at 7:00am from Washington, D.C. (IAD) Fly for 5h 40m Arrive at 9:40am in Seattle (SEA)

Layover in Seattle for 3h 5m

Sun Sep 21st 2025 Korean Air · KE 5020 Depart at 12:45pm from Seattle (SEA) Fly for 11h 45m Arrive at 4:30pm in Seoul (ICN)
US$748

9:00am - 5:55pm
Thu Sep 18th 2025

19h 55m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Thu Sep 18th 2025 Hawaiian Airlines · HA 4968 Depart at 9:00am from Washington, D.C. (IAD) Fly for 5h 43m Arrive at 11:43am in Seattle (SEA)

Layover in Seattle for 2h 32m

Thu Sep 18th 2025 Asiana Airlines · OZ 271 Depart at 2:15pm from Seattle (SEA) Fly for 11h 40m Arrive at 5:55pm in Seoul (ICN)
US$752

9:00am - 5:55pm
Thu Sep 25th 2025

19h 55m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Thu Sep 25th 2025 Hawaiian Airlines · HA 4968 Depart at 9:00am from Washington, D.C. (IAD) Fly for 5h 43m Arrive at 11:43am in Seattle (SEA)

Layover in Seattle for 2h 32m

Thu Sep 25th 2025 Asiana Airlines · OZ 271 Depart at 2:15pm from Seattle (SEA) Fly for 11h 40m Arrive at 5:55pm in Seoul (ICN)
US$839

8:25am - 4:05pm
Mon Sep 22nd 2025

18h 40m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Mon Sep 22nd 2025 Air Canada · AC 4812 Depart at 8:25am from Washington, D.C. (IAD) Fly for 5h 39m Arrive at 11:04am in Vancouver (YVR)

Layover in Vancouver for 1h 26m

Mon Sep 22nd 2025 Air Canada · AC 63 Depart at 12:30pm from Vancouver (YVR) Fly for 11h 35m Arrive at 4:05pm in Seoul (ICN)
US$1065

1:15pm - 5:40pm
Wed Oct 1st 2025

15h 25m
Washington, D.C. (IAD) → Seoul (ICN)

Direct

Wed Oct 1st 2025 Korean Air · KE 94 Depart at 1:15pm from Washington, D.C. (IAD) Fly for 15h 25m Arrive at 5:40pm in Seoul (ICN)
US$1065

1:15pm - 5:40pm
Mon Sep 29th 2025

15h 25m
Washington, D.C. (IAD) → Seoul (ICN)

Direct

Mon Sep 29th 2025 Korean Air · KE 94 Depart at 1:15pm from Washington, D.C. (IAD) Fly for 15h 25m Arrive at 5:40pm in Seoul (ICN)
US$1065

1:15pm - 5:40pm
Tue Sep 30th 2025

15h 25m
Washington, D.C. (IAD) → Seoul (ICN)

Direct

Tue Sep 30th 2025 Korean Air · KE 94 Depart at 1:15pm from Washington, D.C. (IAD) Fly for 15h 25m Arrive at 5:40pm in Seoul (ICN)
US$1065

1:15pm - 5:40pm
Tue Sep 16th 2025

15h 25m
Washington, D.C. (IAD) → Seoul (ICN)

Direct

Tue Sep 16th 2025 Korean Air · KE 94 Depart at 1:15pm from Washington, D.C. (IAD) Fly for 15h 25m Arrive at 5:40pm in Seoul (ICN)
US$1081

9:30am - 4:25pm
Mon Sep 15th 2025

17h 55m
Washington, D.C. (IAD) → Seoul (ICN)

1 Stop

Mon Sep 15th 2025 Korean Air · KE 3431 Depart at 9:30am from Washington, D.C. (IAD) Fly for 1h 34m Arrive at 11:04am in Detroit (DTW)

Layover in Detroit for 1h 26m

Mon Sep 15th 2025 Korean Air · KE 7274 Depart at 12:30pm from Detroit (DTW) Fly for 14h 55m Arrive at 4:25pm in Seoul (ICN)
US$1082

1:15pm - 5:40pm
Thu Sep 18th 2025

15h 25m
Washington, D.C. (IAD) → Seoul (ICN)

Direct

Thu Sep 18th 2025 Korean Air · KE 94 Depart at 1:15pm from Washington, D.C. (IAD) Fly for 15h 25m Arrive at 5:40pm in Seoul (ICN)
US$1082

1:15pm - 5:40pm
Tue Sep 23rd 2025

15h 25m
Washington, D.C. (IAD) → Seoul (ICN)

Direct

Tue Sep 23rd 2025 Korean Air · KE 94 Depart at 1:15pm from Washington, D.C. (IAD) Fly for 15h 25m Arrive at 5:40pm in Seoul (ICN)
US$1082

1:15pm - 5:40pm
Wed Sep 17th 2025

15h 25m
Washington, D.C. (IAD) → Seoul (ICN)

Direct

Wed Sep 17th 2025 Korean Air · KE 94 Depart at 1:15pm from Washington, D.C. (IAD) Fly for 15h 25m Arrive at 5:40pm in Seoul (ICN)
US$1082

1:15pm - 5:40pm
Thu Sep 25th 2025

15h 25m
Washington, D.C. (IAD) → Seoul (ICN)

Direct

Thu Sep 25th 2025 Korean Air · KE 94 Depart at 1:15pm from Washington, D.C. (IAD) Fly for 15h 25m Arrive at 5:40pm in Seoul (ICN)
US$1082

1:15pm - 5:40pm
Mon Sep 15th 2025

15h 25m
Washington, D.C. (IAD) → Seoul (ICN)

Direct

Mon Sep 15th 2025 Korean Air · KE 94 Depart at 1:15pm from Washington, D.C. (IAD) Fly for 15h 25m Arrive at 5:40pm in Seoul (ICN)

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 Washington to South Korea (IAD to KR)

Sarah Belizaire

John Ford

Roaming Sonaa

Andy Travels

Travel With Bender

Wesley Mergard

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