$392+ Cheap flights from Seoul (SEL) 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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — SEA
Sep 18 — Sep 251
Round-trip
1 adult, Economy
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Cheapest flights from Seoul to WashingtonExplore the most affordable flight options available from Seoul to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 19, 2026.
Explore the most affordable flight options available from Seoul to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 19, 2026.
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Wed 9/94:50 pm -
2 stops18h 24m
Sun 9/204:30 pm -
2 stops19h 50m
Deal found 8/14![United Airlines logo]()
$693
This United Airlines deal was found by Cheapflights users on 8/18. 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.
Thu 11/56:00 pm -
1 stop15h 27m
Wed 1/277:32 pm -
1 stop27h 43m
Deal found 8/18![United Airlines logo]()
$695
This United Airlines deal was found by Cheapflights users on 8/17. 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.
Wed 9/1611:30 am -
1 stop18h 54m
Mon 10/267:35 pm -
1 stop17h 05m
Deal found 8/17![United Airlines logo]()
$701
This WhyPayMore deal was found by Cheapflights users on 8/15. 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 WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/58:00 pm -
Nonstop9h 55m
Wed 1/2712:40 pm -
Nonstop11h 55m
Deal found 8/15![Alaska Airlines logo]()
$716
This Alaska Airlines deal was found by Cheapflights users on 8/15. 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.
Mon 9/287:35 pm -
Nonstop10h 05m
Sun 10/111:35 pm -
Nonstop11h 55m
Deal found 8/15![Alaska Airlines logo]()
$719
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Mon 10/511:30 am -
2 stops26h 29m
Wed 10/146:05 pm -
2 stops28h 55m
Deal found 8/14![United Airlines logo]()
$725
This United Airlines deal was found by Cheapflights users on 8/18. 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 10/611:30 am -
2 stops23h 59m
Mon 10/126:05 pm -
2 stops28h 55m
Deal found 8/18![United Airlines logo]()
$727
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Wed 10/74:50 pm -
2 stops33h 00m
Sat 10/107:29 pm -
1 stop27h 31m
Deal found 8/14![United Airlines logo]()
$773
This Orbitz deal was found by Cheapflights users on 8/16. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/55:45 pm -
1 stop17h 21m
Mon 10/2610:00 am -
1 stop14h 10m
Deal found 8/16![Air Canada logo]()
$777
This Air Canada deal was found by Cheapflights users on 8/17. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/145:45 pm -
1 stop17h 26m
Wed 9/237:45 pm -
1 stop28h 20m
Deal found 8/17![Air Canada logo]()
$780
This Air Canada deal was found by Cheapflights users on 8/16. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/55:45 pm -
1 stop17h 21m
Mon 10/265:30 am -
2 stops18h 40m
Deal found 8/16![Multiple Airlines logo]()
$782
This Expedia deal was found by Cheapflights users on 8/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/85:45 pm -
1 stop17h 21m
Tue 10/137:45 pm -
2 stops33h 55m
Deal found 8/14![Multiple Airlines logo]()
$784
Best flights from Seoul to WashingtonDiscover carefully curated flight deals from Seoul to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 19, 2026.
Discover carefully curated flight deals from Seoul to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 19, 2026.
This United Airlines deal was found by Cheapflights users on 8/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1611:30 am -
2 stops26h 21m
Mon 10/267:06 am -
1 stop17h 09m
Deal found 8/16![United Airlines logo]()
$706
This Alaska Airlines deal was found by Cheapflights users on 8/15. 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.
Thu 10/17:35 pm -
Nonstop10h 05m
Sun 10/111:35 pm -
Nonstop11h 55m
Deal found 8/15![Alaska Airlines logo]()
$777
This Air Canada deal was found by Cheapflights users on 8/16. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/55:45 pm -
1 stop17h 21m
Mon 10/265:30 am -
2 stops18h 40m
Deal found 8/16![Multiple Airlines logo]()
$782
This Delta deal was found by Cheapflights users on 8/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/166:45 pm -
1 stop33h 06m
Sat 11/285:47 pm -
1 stop31h 03m
Deal found 8/16![Delta logo]()
$806
This Korean Air deal was found by Cheapflights users on 8/14. 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.
Tue 10/62:30 pm -
1 stop23h 49m
Wed 10/146:45 am -
1 stop19h 05m
Deal found 8/14![Korean Air logo]()
$875
This Asiana Airlines deal was found by Cheapflights users on 8/17. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/209:20 pm -
Nonstop9h 55m
Mon 9/2812:10 am -
Nonstop12h 20m
Deal found 8/17![Asiana Airlines logo]()
$890
This EVA Air deal was found by Cheapflights users on 8/16. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/121:50 pm -
1 stop21h 50m
Thu 9/2412:30 am -
1 stop20h 20m
Deal found 8/16![EVA Air logo]()
$1,017
This Gotogate deal was found by Cheapflights users on 8/18. 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.
Wed 10/712:40 pm -
2 stops21h 52m
Mon 10/124:30 pm -
1 stop26h 35m
Deal found 8/18![ANA logo]()
$1,177
This Cheapflightsfares deal was found by Cheapflights users on 8/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/58:00 am -
2 stops24h 44m
Mon 10/267:18 am -
2 stops22h 47m
Deal found 8/16![Japan Airlines logo]()
$1,274
This United Airlines deal was found by Cheapflights users on 8/18. 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.
Thu 10/811:30 am -
1 stop25h 31m
Mon 10/126:05 pm -
2 stops28h 55m
Deal found 8/18![United Airlines logo]()
$727
This Delta deal was found by Cheapflights users on 8/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/177:00 pm -
1 stop31h 40m
Sat 10/105:49 pm -
1 stop31h 01m
Deal found 8/15![Delta logo]()
$807
This United Airlines deal was found by Cheapflights users on 8/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1211:30 am -
2 stops20h 34m
Thu 9/173:54 pm -
2 stops20h 26m
Deal found 8/16![United Airlines logo]()
$747
This Alaska Airlines deal was found by Cheapflights users on 8/15. 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.
Sun 10/47:35 pm -
Nonstop10h 05m
Sun 10/111:35 pm -
Nonstop11h 55m
Deal found 8/15![Alaska Airlines logo]()
$830
This YBTour deal was found by Cheapflights users on 8/16. 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 10/92:25 pm -
2 stops20h 07m
Wed 10/1410:30 am -
2 stops19h 55m
Deal found 8/16![Multiple Airlines logo]()
$835
This Korean Air deal was found by Cheapflights users on 8/16. 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.
Thu 10/157:40 pm -
1 stop20h 19m
Mon 10/194:24 pm -
1 stop33h 26m
Deal found 8/16![Korean Air logo]()
$877
This United Airlines deal was found by Cheapflights users on 8/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/224:50 pm -
1 stop33h 38m
Mon 10/267:00 am -
1 stop17h 15m
Deal found 8/15![United Airlines logo]()
$806
This Delta deal was found by Cheapflights users on 8/14. 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.
Fri 9/47:00 pm -
Nonstop10h 37m
Sun 9/277:15 am -
1 stop18h 05m
Deal found 8/14![Delta logo]()
$905
This Korean Air deal was found by Cheapflights users on 8/17. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/184:40 pm -
Nonstop10h 00m
Thu 9/241:00 pm -
Nonstop11h 50m
Deal found 8/17![Korean Air logo]()
$905
This Air Canada deal was found by Cheapflights users on 8/16. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/165:50 pm -
2 stops17h 41m
Sat 11/289:45 pm -
2 stops26h 25m
Deal found 8/16![Multiple Airlines logo]()
$914
This Asiana Airlines deal was found by Cheapflights users on 8/15. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/19:20 pm -
Nonstop9h 55m
Sat 10/107:25 pm -
1 stop17h 00m
Deal found 8/15![Asiana Airlines logo]()
$1,018
This United Airlines deal was found by Cheapflights users on 8/18. 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.
Thu 9/1711:30 am -
1 stop29h 07m
Thu 9/247:00 am -
1 stop16h 00m
Deal found 8/18![United Airlines logo]()
$807
This Delta deal was found by Cheapflights users on 8/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/37:00 pm -
1 stop19h 31m
Thu 10/155:30 am -
1 stop19h 10m
Deal found 8/17![Delta logo]()
$930
This Cheapflightsfares deal was found by Cheapflights users on 8/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/167:40 am -
2 stops26h 52m
Mon 10/2610:10 am -
2 stops20h 20m
Deal found 8/14![ANA logo]()
$1,181
This United Airlines deal was found by Cheapflights users on 8/14. 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 9/175:15 pm -
2 stops45h 38m
Sat 10/107:29 pm -
1 stop27h 31m
Deal found 8/14![United Airlines logo]()
$835
This Cheapflightsfares deal was found by Cheapflights users on 8/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/812:40 pm -
2 stops21h 52m
Tue 10/137:25 pm -
2 stops31h 10m
Deal found 8/14![ANA logo]()
$1,193
This United Airlines deal was found by Cheapflights users on 8/17. 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.
Sat 11/2112:45 pm -
2 stops49h 26m
Fri 11/275:00 am -
2 stops31h 40m
Deal found 8/17![United Airlines logo]()
$874
This Justfly.com deal was found by Cheapflights users on 8/16. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2412:40 pm -
1 stop17h 45m
Thu 10/84:30 pm -
1 stop26h 35m
Deal found 8/16![ANA logo]()
$1,208
This Japan Airlines deal was found by Cheapflights users on 8/13. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/158:00 am -
2 stops44h 25m
Sat 9/1912:05 pm -
2 stops41h 10m
Deal found 8/13![Japan Airlines logo]()
$1,463
This Cheapflightsfares deal was found by Cheapflights users on 8/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/18:00 am -
2 stops22h 17m
Tue 10/137:10 am -
2 stops22h 05m
Deal found 8/16![Japan Airlines logo]()
$1,463
This YBTour deal was found by Cheapflights users on 8/18. 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 YBTour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/812:40 pm -
2 stops21h 52m
Mon 10/128:29 pm -
2 stops22h 36m
Deal found 8/18![ANA logo]()
$1,230
Last-minute flights from Seoul to WashingtonDiscover last-minute flight deals from Seoul to Washington. Data last updated August 19, 2026 and is based on user searches.
Discover last-minute flight deals from Seoul to Washington. Data last updated August 19, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 8/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/264:50 pm -
1 stop21h 46m
Sat 9/121:09 pm -
1 stop23h 11m
Deal found 8/15![United Airlines logo]()
$882
This United Airlines deal was found by Cheapflights users on 8/17. 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.
Mon 9/711:30 am -
1 stop16h 30m
Fri 10/236:55 pm -
2 stops29h 20m
Deal found 8/17![United Airlines logo]()
$859
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Wed 9/94:50 pm -
2 stops18h 24m
Sun 9/204:30 pm -
2 stops19h 50m
Deal found 8/14![United Airlines logo]()
$693
This Air Canada deal was found by Cheapflights users on 8/17. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/115:45 pm -
1 stop21h 02m
Mon 9/1410:50 am -
2 stops19h 05m
Deal found 8/17![Multiple Airlines logo]()
$725
This Air Canada deal was found by Cheapflights users on 8/17. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/115:45 pm -
1 stop16h 47m
Mon 9/145:50 am -
1 stop18h 15m
Deal found 8/17![Air Canada logo]()
$741
This Air Canada deal was found by Cheapflights users on 8/17. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/145:45 pm -
1 stop17h 26m
Wed 9/237:45 pm -
1 stop28h 20m
Deal found 8/17![Air Canada logo]()
$780
This United Airlines deal was found by Cheapflights users on 8/17. 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.
Wed 9/1611:30 am -
1 stop18h 54m
Mon 10/267:35 pm -
1 stop17h 05m
Deal found 8/17![United Airlines logo]()
$701
This Delta deal was found by Cheapflights users on 8/14. 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 9/177:00 pm -
1 stop31h 40m
Sat 10/105:49 pm -
1 stop31h 01m
Deal found 8/14![Delta logo]()
$805
This United Airlines deal was found by Cheapflights users on 8/14. 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 9/175:15 pm -
2 stops45h 38m
Sat 10/107:29 pm -
1 stop27h 31m
Deal found 8/14![United Airlines logo]()
$835
This Cheapflightsfares deal was found by Cheapflights users on 8/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/207:20 am -
1 stop28h 45m
Tue 9/2911:10 pm -
1 stop28h 05m
Deal found 8/17![Philippine Airlines logo]()
$734
This Delta deal was found by Cheapflights users on 8/18. 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.
Sun 9/277:00 pm -
1 stop17h 02m
Sat 10/103:34 pm -
1 stop33h 16m
Deal found 8/18![Delta logo]()
$860
This Alaska Airlines deal was found by Cheapflights users on 8/15. 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.
Mon 9/287:35 pm -
Nonstop10h 05m
Sun 10/111:35 pm -
Nonstop11h 55m
Deal found 8/15![Alaska Airlines logo]()
$719
One-way flights from Seoul to WashingtonSearch for one-way flight options from Seoul to Washington. Find affordable one-way fares based on user searches. Data last updated August 19, 2026.
Search for one-way flight options from Seoul to Washington. Find affordable one-way fares based on user searches. Data last updated August 19, 2026.
This Expedia deal was found by Cheapflights users on 8/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/145:45 pm -
1 stop12h 37m
Deal found 8/15![Air Canada logo]()
$392
This Orbitz deal was found by Cheapflights users on 8/14. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/135:45 pm -
1 stop16h 47m
Deal found 8/14![Air Canada logo]()
$394
This Expedia deal was found by Cheapflights users on 8/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/110:45 am -
2 stops27h 57m
Deal found 8/15![Multiple Airlines logo]()
$406
This FlightHub deal was found by Cheapflights users on 8/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/199:20 pm -
Nonstop9h 55m
Deal found 8/16![Asiana Airlines logo]()
$416
This Expedia deal was found by Cheapflights users on 8/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/11:55 am -
2 stops28h 27m
Deal found 8/15![Multiple Airlines logo]()
$421
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 10/169:20 pm -
Nonstop9h 55m
Deal found 8/14![Asiana Airlines logo]()
$424
This Kiwi.com deal was found by Cheapflights users on 8/18. 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.
Thu 10/159:20 pm -
Nonstop9h 55m
Deal found 8/18![Asiana Airlines logo]()
$426
This Air Canada deal was found by Cheapflights users on 8/14. 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 10/1310:40 am -
2 stops19h 42m
Deal found 8/14![Multiple Airlines logo]()
$428
This OneTravel deal was found by Cheapflights users on 8/18. 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 OneTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/261:40 pm -
2 stops20h 42m
Deal found 8/18![Multiple Airlines logo]()
$430
This Air Canada deal was found by Cheapflights users on 8/18. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:35 pm -
2 stops38h 57m
Deal found 8/18![Air Canada logo]()
$433
This Asiana Airlines deal was found by Cheapflights users on 8/15. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/59:20 pm -
Nonstop9h 55m
Deal found 8/15![Asiana Airlines logo]()
$435
This Kiwi.com deal was found by Cheapflights users on 8/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/77:15 pm -
1 stop17h 35m
Deal found 8/17![Multiple Airlines logo]()
$465
Find flight deals from Seoul to Washington
Keep the following information in mind while searching for Seoul to Washington flight deals. Data was last updated August 19, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $693 (United Airlines) |
One-way from | $392 (Expedia) |
Popular in | June |
Cheapest in | November |
Average price | $1,032 |
Good round-trip deal | $881 or less |
Good one-way deal | $913 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Seoul 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 August 19, 2026.
Use the filters below to find and compare flights from Seoul to Washington that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
IncheonSeattle
ICN Incheon Intl - SEA Seattle/Tacoma Intl
ICNSEA
Incheon Intl
Wed 9/16
11:30 am-9:51 pm
2 stops26h 21m
Seattle/Tacoma Intl
Mon 10/26
7:06 am-4:15 pm
1 stop17h 09m
$706
IncheonSeattle
ICN Incheon Intl - SEA Seattle/Tacoma Intl
ICNSEA
Incheon Intl
Thu 10/8
11:30 am-9:01 pm
1 stop25h 31m
Seattle/Tacoma Intl
Mon 10/12
6:05 pm-3:00 pm
2 stops28h 55m
$727
IncheonSeattle
ICN Incheon Intl - SEA Seattle/Tacoma Intl
ICNSEA
Incheon Intl
Sat 9/12
11:30 am-4:04 pm
2 stops20h 34m
Seattle/Tacoma Intl
Thu 9/17
3:54 pm-4:20 am
2 stops20h 26m
$747
IncheonSeattle
ICN Incheon Intl - SEA Seattle/Tacoma Intl
ICNSEA
Incheon Intl
Thu 10/1
7:35 pm-1:40 pm
Nonstop10h 05m
Seattle/Tacoma Intl
Sun 10/11
1:35 pm-5:30 pm
Nonstop11h 55m
$777
IncheonPortland
ICN Incheon Intl - PDX Portland
ICNPDX
Incheon Intl
Mon 10/5
5:45 pm-7:06 pm
1 stop17h 21m
Portland
Mon 10/26
5:30 am-4:10 pm
2 stops18h 40m
$782
IncheonPortland
ICN Incheon Intl - PDX Portland
ICNPDX
Incheon Intl
Mon 11/16
6:45 pm-10:51 am
1 stop33h 06m
Portland
Sat 11/28
5:47 pm-5:50 pm
1 stop31h 03m
$806
IncheonSpokane
ICN Incheon Intl - GEG Spokane
ICNGEG
Incheon Intl
Thu 10/22
4:50 pm-10:28 am
1 stop33h 38m
Spokane
Mon 10/26
7:00 am-4:15 pm
1 stop17h 15m
$806
IncheonPortland
ICN Incheon Intl - PDX Portland
ICNPDX
Incheon Intl
Thu 9/17
7:00 pm-10:40 am
1 stop31h 40m
Portland
Sat 10/10
5:49 pm-4:50 pm
1 stop31h 01m
$807
IncheonPortland
ICN Incheon Intl - PDX Portland
ICNPDX
Incheon Intl
Thu 9/17
11:30 am-12:37 am
1 stop29h 07m
Portland
Thu 9/24
7:00 am-3:00 pm
1 stop16h 00m
$807
IncheonSeattle
ICN Incheon Intl - SEA Seattle/Tacoma Intl
ICNSEA
Incheon Intl
Sun 10/4
7:35 pm-1:40 pm
Nonstop10h 05m
Seattle/Tacoma Intl
Sun 10/11
1:35 pm-5:30 pm
Nonstop11h 55m
$830
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Seoul to Washington
Have a flexible travel schedule? Discover the best time to fly to Washington from Seoul with our price prediction graph.
ICN-SEA
ICN-PDX
ICN-GEG
GMP-SEA
GMP-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 Seoul to Washington
SEL-USWA
ICN-SEA
ICN-PDX
ICN-GEG
GMP-SEA
What is the cheapest month to book a flight from Seoul to State of Washington?
Currently, November is the cheapest month in which you can book a flight from Seoul to State of Washington (average of $555). Flying from Seoul to State of Washington in June is currently the most expensive (average of $1,104). 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 SEL to WA?
Find hourly flight availability from Seoul 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 August 19, 2026.
When flying from Seoul to State of Washington, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Weekly flight availability from Seoul to State of Washington
Explore weekly flight availability from Seoul 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 August 19, 2026.
The most flights from SEL to USWA are scheduled on a Monday (9 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (4 on average).
How much does it cost to fly round-trip from Seoul to State of Washington?
Airfare is below average for this route at the moment.
Seoul to State of Washington flights typically cost between $843 and $1,217 in September.The cheapest round-trip price found within the last 5 days was $694 on United Airlines (Sep 9-Sep 20).
How far ahead should I book a flight from Seoul 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 Seoul 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 August 19, 2026.
Peruse reviews from past customers who have flown with Korean Air,Asiana Airlines, andAlaska Airlines from Seoul to Washington to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.3
Crew
8.7
Overall
8.4
Entertainment
8.2
Food
8.1
Boarding
8.5
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Comfort
8.3
Crew
8.7
Overall
8.4
Entertainment
8.2
Food
8.1
Boarding
8.5
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Comfort
8.3
Crew
8.7
Overall
8.4
Entertainment
8.2
Food
8.1
Boarding
8.5
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Comfort
8.3
Crew
8.7
Overall
8.4
Entertainment
8.2
Food
8.1
Boarding
8.5
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Comfort
8.3
Crew
8.7
Overall
8.4
Entertainment
8.2
Food
8.1
Boarding
8.5
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Comfort
8.3
Crew
8.7
Overall
8.4
Entertainment
8.2
Food
8.1
Boarding
8.5
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Related info for your journey
Find useful and relevant information for your journey from Seoul to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Seoul to Washington
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Complete your trip
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Find flights from Seoul to Washington, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seoul and Washington flights
Browse other Seoul and Washington flight options. Last updated on August 19, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 6 airlines flying from Seoul to Washington
Discover the top 6 airlines that operate flights from Seoul 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 August 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$351 | Average$866 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$449 | Average$745 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$472 | Average$518 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$476 | Average$714 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$485 | Average$739 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$512 | Average$636 | FlexibilityNo cancel fee | On-time76% |