$424+ Cheap flights from South Korea to Washington
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — SEA
Jul 21 — Jul 281
Round-trip
1 adult, Economy
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Cheapest flights from South Korea to WashingtonExplore the most affordable flight options available from South Korea to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 21, 2026.
Explore the most affordable flight options available from South Korea to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 21, 2026.
This Philippine Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/238:30 pm
ICN
- SEA
1 stop39h 05m
Philippine Airlines
Fri 1/111:55 pm
SEA
- ICN
1 stop26h 20m
Philippine Airlines
Deal found 6/19![Philippine Airlines logo]()
$783
This Philippine Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/18:30 pm
ICN
- SEA
1 stop39h 35m
Philippine Airlines
Tue 9/2211:10 pm
SEA
- ICN
1 stop28h 05m
Philippine Airlines
Deal found 6/20![Philippine Airlines logo]()
$784
This Philippine Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/207:20 am
ICN
- SEA
1 stop29h 15m
Philippine Airlines
Wed 1/2011:55 pm
SEA
- ICN
1 stop26h 20m
Philippine Airlines
Deal found 6/20![Philippine Airlines logo]()
$842
This Philippine Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/148:30 pm
ICN
- SEA
1 stop39h 35m
Philippine Airlines
Wed 9/3011:10 pm
SEA
- ICN
1 stop38h 50m
Philippine Airlines
Deal found 6/20![Philippine Airlines logo]()
$843
This Mytrip deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1910:30 pm
ICN
- SEA
3 stops31h 52m
Multiple Airlines
Sun 8/307:35 pm
SEA
- ICN
1 stop31h 10m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$865
This Philippine Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/18:30 pm
ICN
- SEA
1 stop39h 35m
Philippine Airlines
Sun 7/511:10 pm
SEA
- ICN
1 stop28h 05m
Philippine Airlines
Deal found 6/20![Philippine Airlines logo]()
$897
This Philippine Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/318:30 pm
ICN
- SEA
1 stop39h 35m
Philippine Airlines
Fri 9/1811:10 pm
SEA
- ICN
1 stop38h 50m
Philippine Airlines
Deal found 6/19![Philippine Airlines logo]()
$899
This Philippine Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/158:30 pm
ICN
- SEA
1 stop39h 35m
Philippine Airlines
Wed 7/2911:10 pm
SEA
- ICN
1 stop28h 05m
Philippine Airlines
Deal found 6/19![Philippine Airlines logo]()
$907
This Kiwi.com deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/277:35 pm
ICN
- SEA
Nonstop10h 30m
Multiple Airlines
Wed 8/57:00 am
SEA
- ICN
1 stop19h 45m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$914
This Kiwi.com deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/227:35 pm
ICN
- PDX
1 stop35h 13m
Multiple Airlines
Wed 8/122:30 pm
PDX
- ICN
1 stop36h 15m
Multiple Airlines
Deal found 6/18![Multiple Airlines logo]()
$983
This YBTour deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure YBTour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/197:35 pm
ICN
- PDX
1 stop28h 02m
Alaska Airlines
Mon 7/276:19 am
PDX
- ICN
1 stop19h 11m
Alaska Airlines
Deal found 6/16![Alaska Airlines logo]()
$997
This Kiwi.com deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/247:35 pm
ICN
- PDX
1 stop18h 50m
Multiple Airlines
Wed 8/122:30 pm
PDX
- ICN
1 stop36h 15m
Multiple Airlines
Deal found 6/18![Multiple Airlines logo]()
$1,008
Best flights from South Korea to WashingtonDiscover carefully curated flight deals from South Korea to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 21, 2026.
Discover carefully curated flight deals from South Korea to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 21, 2026.
This Philippine Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/158:30 pm
ICN
- SEA
1 stop39h 35m
Philippine Airlines
Wed 7/2911:10 pm
SEA
- ICN
1 stop28h 05m
Philippine Airlines
Deal found 6/19![Philippine Airlines logo]()
$907
This United Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/274:50 pm
ICN
- SEA
1 stop22h 29m
United Airlines
Wed 8/58:58 am
SEA
- ICN
2 stops27h 22m
United Airlines
Deal found 6/19![United Airlines logo]()
$983
This Alaska Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/68:00 pm
ICN
- PDX
2 stops30h 35m
Alaska Airlines
Tue 11/102:47 pm
PDX
- ICN
2 stops33h 48m
Alaska Airlines
Deal found 6/19![Alaska Airlines logo]()
$1,024
This Air Canada deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/235:45 pm
ICN
- PDX
1 stop17h 21m
Air Canada
Tue 4/67:05 pm
PDX
- ICN
1 stop29h 00m
Air Canada
Deal found 6/20![Air Canada logo]()
$1,072
This Delta deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/204:10 pm
ICN
- SEA
1 stop29h 50m
Delta
Tue 8/259:40 pm
SEA
- ICN
1 stop27h 40m
Delta
Deal found 6/18![Delta logo]()
$1,082
This Gotogate deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/128:45 am
PUS
- SEA
1 stop17h 55m
Korean Air
Mon 11/1611:00 am
SEA
- PUS
1 stop31h 35m
Korean Air
Deal found 6/17![Korean Air logo]()
$1,175
This Air Canada deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/105:45 pm
ICN
- PDX
1 stop17h 26m
Multiple Airlines
Sun 7/1210:10 am
PDX
- ICN
2 stops19h 10m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$1,207
This China Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1910:30 am
PUS
- SEA
1 stop24h 45m
China Airlines
Mon 10/191:15 am
SEA
- PUS
1 stop18h 00m
China Airlines
Deal found 6/18![China Airlines logo]()
$1,237
This American Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/265:50 pm
ICN
- GEG
1 stop18h 52m
American Airlines
Sat 9/1212:45 pm
GEG
- ICN
1 stop35h 00m
American Airlines
Deal found 6/15![American Airlines logo]()
$1,280
This FlightHub deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/137:40 am
PUS
- SEA
1 stop41h 05m
Singapore Airlines
Sun 8/1610:15 am
SEA
- PUS
1 stop52h 35m
Singapore Airlines
Deal found 6/19![Singapore Airlines logo]()
$1,317
This Gotogate deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/167:50 pm
GMP
- SEA
2 stops39h 32m
ANA
Wed 12/1610:10 am
SEA
- GMP
2 stops19h 20m
ANA
Deal found 6/17![ANA logo]()
$1,417
This FlightHub deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/78:00 am
GMP
- PDX
2 stops22h 59m
Japan Airlines
Tue 8/117:19 am
PDX
- GMP
2 stops21h 56m
Japan Airlines
Deal found 6/18![Japan Airlines logo]()
$1,437
This STARLUX Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure STARLUX Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:55 pm
PUS
- PDX
2 stops43h 04m
STARLUX Airlines
Tue 10/137:37 pm
PDX
- PUS
2 stops30h 18m
STARLUX Airlines
Deal found 6/17![STARLUX Airlines logo]()
$1,561
This United Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1711:30 am
ICN
- SEA
3 stops25h 45m
United Airlines
Sun 9/277:11 am
SEA
- ICN
1 stop15h 49m
United Airlines
Deal found 6/20![United Airlines logo]()
$989
This Alaska Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/37:35 pm
ICN
- PDX
2 stops19h 37m
Alaska Airlines
Thu 10/159:30 pm
PDX
- ICN
2 stops28h 00m
Alaska Airlines
Deal found 6/20![Alaska Airlines logo]()
$1,055
This United Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2011:30 am
ICN
- SEA
1 stop27h 56m
United Airlines
Tue 8/254:45 pm
SEA
- ICN
2 stops30h 15m
United Airlines
Deal found 6/19![United Airlines logo]()
$1,025
This Alaska Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:35 pm
ICN
- GEG
2 stops43h 03m
Alaska Airlines
Sun 9/137:00 am
GEG
- ICN
2 stops42h 30m
Alaska Airlines
Deal found 6/15![Alaska Airlines logo]()
$1,112
This Korean Air deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/197:40 pm
ICN
- GEG
1 stop18h 57m
Korean Air
Sun 11/225:45 am
GEG
- ICN
1 stop17h 35m
Korean Air
Deal found 6/19![Korean Air logo]()
$1,231
This Gotogate deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/207:00 am
PUS
- SEA
1 stop23h 05m
Multiple Airlines
Sun 8/91:55 am
SEA
- PUS
1 stop25h 05m
Multiple Airlines
Deal found 6/18![Multiple Airlines logo]()
$1,242
This United Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/214:50 pm
ICN
- SEA
1 stop22h 36m
United Airlines
Mon 8/313:30 pm
SEA
- ICN
1 stop31h 30m
United Airlines
Deal found 6/18![United Airlines logo]()
$1,036
This Kiwi.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/304:40 pm
ICN
- PDX
2 stops29h 31m
Multiple Airlines
Sat 8/87:15 am
PDX
- ICN
1 stop20h 55m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$1,251
This Singapore Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/218:15 am
PUS
- SEA
1 stop40h 30m
Singapore Airlines
Sat 8/2910:15 am
SEA
- PUS
1 stop28h 35m
Singapore Airlines
Deal found 6/16![Singapore Airlines logo]()
$1,378
This Alaska Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/97:35 pm
ICN
- PDX
2 stops20h 21m
Alaska Airlines
Sun 7/125:36 pm
PDX
- ICN
2 stops31h 54m
Alaska Airlines
Deal found 6/18![Alaska Airlines logo]()
$1,155
This China Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/77:50 pm
PUS
- SEA
1 stop15h 20m
China Airlines
Sun 12/2012:10 am
SEA
- PUS
1 stop25h 40m
China Airlines
Deal found 6/18![China Airlines logo]()
$1,420
This FlightHub deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/68:00 am
GMP
- PDX
2 stops24h 38m
Japan Airlines
Tue 8/117:19 am
PDX
- GMP
2 stops21h 56m
Japan Airlines
Deal found 6/18![Japan Airlines logo]()
$1,437
This YBTour deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure YBTour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/712:40 pm
GMP
- SEA
2 stops21h 52m
ANA
Mon 7/134:30 pm
SEA
- GMP
1 stop26h 35m
ANA
Deal found 6/19![ANA logo]()
$1,439
This Delta deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1010:40 am
PUS
- SEA
1 stop18h 57m
Delta
Mon 8/171:05 pm
SEA
- PUS
1 stop14h 30m
Delta
Deal found 6/19![Delta logo]()
$1,445
This Alaska Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/97:35 pm
ICN
- PDX
2 stops20h 21m
Alaska Airlines
Mon 7/139:45 pm
PDX
- ICN
2 stops51h 45m
Alaska Airlines
Deal found 6/16![Alaska Airlines logo]()
$1,160
This YBTour deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure YBTour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/94:30 pm
PUS
- PDX
2 stops16h 30m
Multiple Airlines
Tue 10/2010:51 am
PDX
- PUS
2 stops18h 44m
Multiple Airlines
Deal found 6/17![Multiple Airlines logo]()
$1,284
This Korean Air deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/104:30 pm
PUS
- SEA
1 stop34h 30m
Korean Air
Mon 8/171:20 pm
SEA
- PUS
1 stop14h 15m
Korean Air
Deal found 6/16![Korean Air logo]()
$1,452
Last-minute flights from South Korea to WashingtonDiscover last-minute flight deals from South Korea to Washington. Data last updated June 21, 2026 and is based on user searches.
Discover last-minute flight deals from South Korea to Washington. Data last updated June 21, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1910:30 pm
ICN
- SEA
3 stops31h 52m
Multiple Airlines
Sun 8/307:35 pm
SEA
- ICN
1 stop31h 10m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$865
This YBTour deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure YBTour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/197:35 pm
ICN
- PDX
1 stop28h 02m
Alaska Airlines
Mon 7/276:19 am
PDX
- ICN
1 stop19h 11m
Alaska Airlines
Deal found 6/16![Alaska Airlines logo]()
$997
This Gotogate deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/207:35 pm
ICN
- SEA
Nonstop10h 30m
Multiple Airlines
Sun 8/3010:30 am
SEA
- ICN
1 stop16h 15m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$931
This flugladen.de deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/229:20 pm
ICN
- SEA
Nonstop9h 55m
Asiana Airlines
Mon 7/612:10 am
SEA
- ICN
Nonstop11h 50m
Asiana Airlines
Deal found 6/18![Asiana Airlines logo]()
$929
This Kiwi.com deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/227:35 pm
ICN
- PDX
1 stop35h 13m
Multiple Airlines
Wed 8/122:30 pm
PDX
- ICN
1 stop36h 15m
Multiple Airlines
Deal found 6/18![Multiple Airlines logo]()
$983
This United Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/234:50 pm
ICN
- SEA
1 stop15h 30m
United Airlines
Tue 7/215:04 pm
SEA
- ICN
2 stops19h 16m
United Airlines
Deal found 6/18![United Airlines logo]()
$946
This Air Canada deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/235:45 pm
ICN
- PDX
1 stop13h 06m
Multiple Airlines
Sun 8/2310:10 am
PDX
- ICN
2 stops19h 10m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$1,009
This Kiwi.com deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/247:35 pm
ICN
- PDX
1 stop18h 50m
Multiple Airlines
Tue 8/112:30 pm
PDX
- ICN
1 stop36h 15m
Multiple Airlines
Deal found 6/18![Multiple Airlines logo]()
$1,008
This Kiwi.com deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/277:35 pm
ICN
- SEA
Nonstop10h 30m
Multiple Airlines
Wed 8/57:00 am
SEA
- ICN
1 stop19h 45m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$914
This Philippine Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/18:30 pm
ICN
- SEA
1 stop39h 35m
Philippine Airlines
Sun 7/511:10 pm
SEA
- ICN
1 stop28h 05m
Philippine Airlines
Deal found 6/20![Philippine Airlines logo]()
$897
This Philippine Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/148:30 pm
ICN
- SEA
1 stop39h 35m
Philippine Airlines
Tue 7/2811:10 pm
SEA
- ICN
1 stop28h 05m
Philippine Airlines
Deal found 6/19![Philippine Airlines logo]()
$920
This Philippine Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/158:30 pm
ICN
- SEA
1 stop39h 35m
Philippine Airlines
Wed 7/2911:10 pm
SEA
- ICN
1 stop28h 05m
Philippine Airlines
Deal found 6/19![Philippine Airlines logo]()
$907
One-way flights from South Korea to WashingtonSearch for one-way flight options from South Korea to Washington. Find affordable one-way fares based on user searches. Data last updated June 21, 2026.
Search for one-way flight options from South Korea to Washington. Find affordable one-way fares based on user searches. Data last updated June 21, 2026.
This Philippine Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/128:30 pm
ICN
- SEA
1 stop39h 35m
Philippine Airlines
Deal found 6/20![Philippine Airlines logo]()
$424
This Philippine Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/148:30 pm
ICN
- SEA
1 stop39h 35m
Philippine Airlines
Deal found 6/19![Philippine Airlines logo]()
$428
This Kiwi.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/48:30 pm
ICN
- SEA
1 stop39h 35m
Philippine Airlines
Deal found 6/20![Philippine Airlines logo]()
$445
This Trip.com deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/252:35 am
ICN
- SEA
2 stops36h 07m
Multiple Airlines
Deal found 6/17![Multiple Airlines logo]()
$486
This United Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/304:50 pm
ICN
- SEA
1 stop24h 23m
United Airlines
Deal found 6/19![United Airlines logo]()
$489
This United Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/2311:30 am
ICN
- SEA
1 stop19h 09m
United Airlines
Deal found 6/18![United Airlines logo]()
$493
This United Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/254:50 pm
ICN
- SEA
2 stops21h 10m
United Airlines
Deal found 6/17![United Airlines logo]()
$494
This Mytrip deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1210:30 pm
ICN
- SEA
2 stops27h 37m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$504
This Kiwi.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/228:30 pm
ICN
- PDX
2 stops55h 09m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$543
This Kiwi.com deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/308:00 am
ICN
- PDX
2 stops28h 50m
Multiple Airlines
Deal found 6/18![Multiple Airlines logo]()
$545
This Kiwi.com deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/218:30 pm
ICN
- PDX
2 stops55h 05m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$547
This FlightHub deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/11:20 pm
ICN
- PDX
2 stops37h 05m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$565
Find flight deals from South Korea to Washington
Keep the following information in mind while searching for South Korea to Washington flight deals. Data was last updated June 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $784 (Philippine Airlines) |
One-way from | $424 (Philippine Airlines) |
Popular in | June |
Cheapest in | November |
Average price | $1,113 |
Good round-trip deal | $1,480 or less |
Good one-way deal | $641 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from South Korea to Washington that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 21, 2026.
Use the filters below to find and compare flights from South Korea to Washington that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
IncheonSeattle
ICN - SEA
ICNSEA
Incheon Intl
Wed 7/15
8:30 pm-8:05 pm
1 stop39h 35m
Seattle/Tacoma Intl
Wed 7/29
11:10 pm-7:15 pm
1 stop28h 05m
$907
IncheonSeattle
ICN - SEA
ICNSEA
Incheon Intl
Sat 6/27
4:50 pm-11:19 pm
1 stop22h 29m
Seattle/Tacoma Intl
Wed 8/5
8:58 am-4:20 am
2 stops27h 22m
$983
IncheonSeattle
ICN - SEA
ICNSEA
Incheon Intl
Thu 9/17
11:30 am-9:15 pm
3 stops25h 45m
Seattle/Tacoma Intl
Sun 9/27
7:11 am-3:00 pm
1 stop15h 49m
$989
IncheonPortland
ICN - PDX
ICNPDX
Incheon Intl
Fri 11/6
8:00 pm-9:35 am
2 stops30h 35m
Portland
Tue 11/10
2:47 pm-5:35 pm
2 stops33h 48m
$1,024
IncheonSeattle
ICN - SEA
ICNSEA
Incheon Intl
Thu 8/20
11:30 am-11:26 pm
1 stop27h 56m
Seattle/Tacoma Intl
Tue 8/25
4:45 pm-3:00 pm
2 stops30h 15m
$1,025
IncheonSeattle
ICN - SEA
ICNSEA
Incheon Intl
Fri 8/21
4:50 pm-11:26 pm
1 stop22h 36m
Seattle/Tacoma Intl
Mon 8/31
3:30 pm-3:00 pm
1 stop31h 30m
$1,036
IncheonPortland
ICN - PDX
ICNPDX
Incheon Intl
Sat 10/3
7:35 pm-11:12 pm
2 stops19h 37m
Portland
Thu 10/15
9:30 pm-5:30 pm
2 stops28h 00m
$1,055
IncheonPortland
ICN - PDX
ICNPDX
Incheon Intl
Fri 10/23
5:45 pm-7:06 pm
1 stop17h 21m
Portland
Tue 4/6
7:05 pm-4:05 pm
1 stop29h 00m
$1,072
IncheonSeattle
ICN - SEA
ICNSEA
Incheon Intl
Thu 8/20
4:10 pm-6:00 am
1 stop29h 50m
Seattle/Tacoma Intl
Tue 8/25
9:40 pm-5:20 pm
1 stop27h 40m
$1,082
IncheonSpokane
ICN - GEG
ICNGEG
Incheon Intl
Fri 9/11
7:35 pm-10:38 pm
2 stops43h 03m
Spokane
Sun 9/13
7:00 am-5:30 pm
2 stops42h 30m
$1,112
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from South Korea to Washington
Have a flexible travel schedule? Discover the best time to fly to Washington from South Korea with our price prediction graph.
ICN-SEA
ICN-PDX
GMP-SEA
ICN-GEG
PUS-PDX
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from South Korea to Washington
KR0-USWA
ICN-SEA
ICN-PDX
GMP-SEA
ICN-GEG
What is the cheapest month to book a flight from South Korea to State of Washington?
Currently, August is the cheapest month in which you can book a flight from South Korea to State of Washington (average of $143). Flying from South Korea to State of Washington in October is currently the most expensive (average of $1,042). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from KR to WA?
Find hourly flight availability from South Korea to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 21, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from South Korea to State of Washington as you normally would.
Weekly flight availability from South Korea to State of Washington
Explore weekly flight availability from South Korea to Washington. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 21, 2026.
The most flights from KR0 to USWA are scheduled on a Friday (9 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (5 on average).
How far ahead should I book a flight from South Korea to State of Washington?
Booking 9 days in advance of your planned departure date is, on average, the best time to get cheap flights from South Korea to State of Washington. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Reviews of airlines servicing Washington
Get insights into the airlines that provide service to Washington. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington. Reviews last updated June 21, 2026.
Read reviews from past customers who have flown Korean Air,Asiana Airlines, andAlaska Airlines from South Korea to Washington. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
8.2
Overall
8.4
Food
8.1
Boarding
8.5
Crew
8.7
Comfort
8.3
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Entertainment
8.2
Overall
8.4
Food
8.1
Boarding
8.5
Crew
8.7
Comfort
8.3
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Entertainment
8.2
Overall
8.4
Food
8.1
Boarding
8.5
Crew
8.7
Comfort
8.3
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Entertainment
8.2
Overall
8.4
Food
8.1
Boarding
8.5
Crew
8.7
Comfort
8.3
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Entertainment
8.2
Overall
8.4
Food
8.1
Boarding
8.5
Crew
8.7
Comfort
8.3
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Entertainment
8.2
Overall
8.4
Food
8.1
Boarding
8.5
Crew
8.7
Comfort
8.3
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Related info for your journey
Find useful and relevant information for your journey from South Korea to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for South Korea to Washington
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Washington by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from South Korea to Washington by cabin class
Find flights from South Korea to Washington, based on your preferred cabin class, be it economy, premium economy, business, or first class.
South Korea and Washington flights
Browse other South Korea and Washington flight options. Last updated on June 21, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Washington
Find the right flight back to South Korea after your stay in Washington
South Korea to Washington flights
Consider these flights traveling from South Korea to Washington.
Top 6 airlines flying from South Korea to Washington
Discover the top 6 airlines that operate flights from South Korea to Washington. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$351 | Average$866 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$468 | Average$746 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$472 | Average$518 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$476 | Average$663 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$484 | Average$728 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$512 | Average$614 | FlexibilityNo cancel fee | On-time76% |