$427+ 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 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — SEA
Sep 2 — Sep 91
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 August 3, 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 August 3, 2026.
This YBTour deal was found by Cheapflights users on 8/2. 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.
Wed 9/97:35 pm
ICN
- SEA
Nonstop10h 05m
Alaska Airlines
Sun 9/201:35 pm
SEA
- ICN
Nonstop11h 55m
Alaska Airlines
Deal found 8/2![Alaska Airlines logo]()
$680
This United Airlines deal was found by Cheapflights users on 7/31. 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 9/104:50 pm
ICN
- SEA
2 stops18h 24m
United Airlines
Wed 9/234:30 pm
SEA
- ICN
2 stops19h 50m
United Airlines
Deal found 7/31![United Airlines logo]()
$685
This United Airlines deal was found by Cheapflights users on 7/31. 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
ICN
- SEA
1 stop18h 54m
United Airlines
Mon 10/267:35 pm
SEA
- ICN
1 stop17h 05m
United Airlines
Deal found 7/31![United Airlines logo]()
$689
This Kissandfly.com deal was found by Cheapflights users on 8/1. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/77:35 pm
ICN
- SEA
Nonstop10h 05m
Alaska Airlines
Mon 9/211:35 pm
SEA
- ICN
Nonstop11h 55m
Alaska Airlines
Deal found 8/1![Alaska Airlines logo]()
$697
This WhyPayMore deal was found by Cheapflights users on 8/1. 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.
Tue 10/65:45 pm
ICN
- SEA
1 stop32h 07m
Air Canada
Tue 10/135:40 am
SEA
- ICN
1 stop18h 25m
Air Canada
Deal found 8/1![Air Canada logo]()
$705
This WhyPayMore deal was found by Cheapflights users on 8/2. 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.
Wed 9/95:45 pm
ICN
- SEA
1 stop16h 47m
Air Canada
Sun 9/207:15 pm
SEA
- ICN
1 stop28h 50m
Air Canada
Deal found 8/2![Air Canada logo]()
$721
This WhyPayMore deal was found by Cheapflights users on 8/1. 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.
Tue 10/66:55 am
ICN
- SEA
2 stops27h 37m
Multiple Airlines
Tue 10/137:20 pm
SEA
- ICN
1 stop28h 45m
Multiple Airlines
Deal found 8/1![Multiple Airlines logo]()
$722
This Air Canada deal was found by Cheapflights users on 7/31. 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.
Wed 12/236:55 pm
ICN
- SEA
1 stop16h 27m
Air Canada
Fri 1/18:15 am
SEA
- ICN
1 stop15h 55m
Air Canada
Deal found 7/31![Air Canada logo]()
$727
This Gotogate deal was found by Cheapflights users on 7/31. 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 9/1410:30 am
PUS
- SEA
1 stop25h 15m
China Airlines
Sun 9/201:15 am
SEA
- PUS
1 stop25h 45m
China Airlines
Deal found 7/31![China Airlines logo]()
$846
This China Airlines deal was found by Cheapflights users on 8/1. 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 12/1411:50 am
PUS
- SEA
1 stop23h 20m
China Airlines
Sun 12/2712:10 am
SEA
- PUS
1 stop25h 40m
China Airlines
Deal found 8/1![China Airlines logo]()
$848
This WhyPayMore deal was found by Cheapflights users on 8/2. 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.
Sat 10/35:45 pm
ICN
- PDX
1 stop17h 21m
Air Canada
Thu 10/157:45 pm
PDX
- ICN
1 stop28h 20m
Air Canada
Deal found 8/2![Air Canada logo]()
$849
This Trip.com deal was found by Cheapflights users on 7/31. 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 9/105:45 pm
ICN
- PDX
1 stop17h 26m
Air Canada
Wed 9/237:45 pm
PDX
- ICN
1 stop28h 20m
Air Canada
Deal found 7/31![Air Canada logo]()
$854
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 August 3, 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 August 3, 2026.
This United Airlines deal was found by Cheapflights users on 7/31. 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 10/111:30 am
ICN
- SEA
1 stop16h 53m
United Airlines
Wed 10/143:55 pm
SEA
- ICN
2 stops31h 05m
United Airlines
Deal found 7/31![United Airlines logo]()
$767
This China Airlines deal was found by Cheapflights users on 8/1. 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 12/1411:50 am
PUS
- SEA
1 stop23h 20m
China Airlines
Sun 12/2712:10 am
SEA
- PUS
1 stop25h 40m
China Airlines
Deal found 8/1![China Airlines logo]()
$848
This Alaska Airlines deal was found by Cheapflights users on 8/2. 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 9/177:35 pm
ICN
- PDX
1 stop15h 03m
Alaska Airlines
Sat 10/105:48 pm
PDX
- ICN
2 stops31h 42m
Alaska Airlines
Deal found 8/2![Alaska Airlines logo]()
$930
This Delta deal was found by Cheapflights users on 8/1. 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.
Tue 9/158:00 am
PUS
- SEA
2 stops24h 30m
Delta
Tue 9/227:15 am
SEA
- PUS
2 stops20h 20m
Delta
Deal found 8/1![Delta logo]()
$938
This China Airlines deal was found by Cheapflights users on 8/1. 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.
Thu 10/18:00 pm
PUS
- SEA
1 stop15h 15m
Multiple Airlines
Sat 10/108:36 pm
SEA
- PUS
2 stops22h 39m
Multiple Airlines
Deal found 8/1![Multiple Airlines logo]()
$962
This Air Canada deal was found by Cheapflights users on 8/2. 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.
Wed 10/215:45 pm
ICN
- PDX
1 stop17h 21m
Air Canada
Sun 10/255:36 am
PDX
- ICN
2 stops42h 34m
Air Canada
Deal found 8/2![Air Canada logo]()
$1,025
This Asiana Airlines deal was found by Cheapflights users on 7/30. 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 9/109:20 pm
ICN
- SEA
Nonstop9h 55m
Asiana Airlines
Wed 9/237:35 pm
SEA
- ICN
1 stop16h 50m
Asiana Airlines
Deal found 7/30![Asiana Airlines logo]()
$1,040
This STARLUX Airlines deal was found by Cheapflights users on 8/1. 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.
Tue 9/1511:55 am
PUS
- SEA
1 stop20h 15m
STARLUX Airlines
Mon 9/211:15 am
SEA
- PUS
1 stop18h 15m
STARLUX Airlines
Deal found 8/1![STARLUX Airlines logo]()
$1,093
This EVA Air deal was found by Cheapflights users on 8/2. 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.
Fri 9/111:50 pm
GMP
- SEA
1 stop21h 50m
EVA Air
Sun 9/201:30 am
SEA
- GMP
1 stop24h 40m
EVA Air
Deal found 8/2![EVA Air logo]()
$1,173
This Japan Airlines deal was found by Cheapflights users on 8/2. 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.
Wed 9/98:00 am
GMP
- SEA
2 stops30h 40m
Japan Airlines
Tue 9/228:41 am
SEA
- GMP
2 stops33h 59m
Japan Airlines
Deal found 8/2![Japan Airlines logo]()
$1,198
This Cathay Pacific deal was found by Cheapflights users on 7/31. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/278:05 pm
ICN
- PDX
2 stops40h 45m
Cathay Pacific
Sun 9/275:55 pm
PDX
- ICN
2 stops33h 10m
Cathay Pacific
Deal found 7/31![Cathay Pacific logo]()
$1,237
This Gotogate deal was found by Cheapflights users on 7/29. 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 12/1412:25 pm
GMP
- SEA
1 stop17h 55m
ANA
Fri 1/810:10 am
SEA
- GMP
2 stops19h 20m
ANA
Deal found 7/29![ANA logo]()
$1,284
This Korean Air deal was found by Cheapflights users on 8/2. 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 10/88:45 am
PUS
- PDX
2 stops25h 27m
Korean Air
Sun 10/187:59 pm
PDX
- PUS
2 stops21h 11m
Korean Air
Deal found 8/2![Korean Air logo]()
$1,293
This United Airlines deal was found by Cheapflights users on 8/2. 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 9/911:30 am
ICN
- SEA
2 stops20h 22m
United Airlines
Wed 9/164:30 pm
SEA
- ICN
2 stops19h 50m
United Airlines
Deal found 8/2![United Airlines logo]()
$795
This United Airlines deal was found by Cheapflights users on 8/1. 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 9/911:30 am
ICN
- SEA
2 stops20h 22m
United Airlines
Tue 9/154:45 pm
SEA
- ICN
2 stops19h 35m
United Airlines
Deal found 8/1![United Airlines logo]()
$798
This China Airlines deal was found by Cheapflights users on 8/2. 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.
Sun 10/1810:30 am
PUS
- SEA
1 stop24h 45m
China Airlines
Sun 11/812:10 am
SEA
- PUS
1 stop17h 40m
China Airlines
Deal found 8/2![China Airlines logo]()
$952
This United Airlines deal was found by Cheapflights users on 8/1. 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 12/2112:45 pm
ICN
- SEA
2 stops26h 04m
United Airlines
Sun 12/271:18 pm
SEA
- ICN
1 stop23h 22m
United Airlines
Deal found 8/1![United Airlines logo]()
$814
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 41m
Alaska Airlines
Thu 10/159:30 pm
PDX
- ICN
2 stops28h 00m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$1,028
This China Airlines deal was found by Cheapflights users on 8/2. 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.
Thu 9/1712:35 pm
ICN
- PDX
2 stops26h 23m
Multiple Airlines
Sat 10/105:48 pm
PDX
- ICN
2 stops25h 27m
Multiple Airlines
Deal found 8/2![Multiple Airlines logo]()
$1,047
This Delta deal was found by Cheapflights users on 7/30. 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 9/148:00 am
PUS
- SEA
2 stops24h 30m
Delta
Mon 9/217:15 am
SEA
- PUS
2 stops21h 30m
Delta
Deal found 7/30![Delta logo]()
$1,060
This China Airlines deal was found by Cheapflights users on 7/29. 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.
Thu 11/2611:50 am
PUS
- SEA
1 stop23h 20m
China Airlines
Sun 11/2912:10 am
SEA
- PUS
1 stop25h 40m
China Airlines
Deal found 7/29![China Airlines logo]()
$1,009
This United Airlines deal was found by Cheapflights users on 7/29. 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 9/114:50 pm
ICN
- SEA
1 stop15h 24m
United Airlines
Wed 9/233:30 pm
SEA
- ICN
1 stop31h 30m
United Airlines
Deal found 7/29![United Airlines logo]()
$853
This Mytrip deal was found by Cheapflights users on 7/30. 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.
Mon 9/142:20 pm
PUS
- SEA
2 stops34h 40m
Multiple Airlines
Sun 9/201:15 am
SEA
- PUS
1 stop18h 00m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$1,049
This Japan Airlines deal was found by Cheapflights users on 8/2. 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.
Fri 9/118:00 am
GMP
- SEA
2 stops30h 40m
Japan Airlines
Tue 9/228:41 am
SEA
- GMP
2 stops33h 59m
Japan Airlines
Deal found 8/2![Japan Airlines logo]()
$1,198
This EVA Air deal was found by Cheapflights users on 8/1. 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.
Thu 10/17:10 pm
PUS
- SEA
1 stop16h 10m
EVA Air
Fri 10/91:30 am
SEA
- PUS
1 stop24h 30m
EVA Air
Deal found 8/1![EVA Air logo]()
$1,210
This Delta deal was found by Cheapflights users on 7/30. 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 9/138:00 am
PUS
- SEA
2 stops28h 01m
Delta
Sun 9/209:30 pm
SEA
- PUS
2 stops30h 05m
Delta
Deal found 7/30![Delta logo]()
$1,112
This United Airlines deal was found by Cheapflights users on 7/30. 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
ICN
- SEA
1 stop18h 54m
United Airlines
Mon 10/267:35 pm
SEA
- ICN
1 stop17h 05m
United Airlines
Deal found 7/30![United Airlines logo]()
$862
This STARLUX Airlines deal was found by Cheapflights users on 8/2. 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.
Wed 10/712:30 pm
PUS
- PDX
2 stops25h 26m
STARLUX Airlines
Wed 10/217:37 pm
PDX
- PUS
2 stops30h 18m
STARLUX Airlines
Deal found 8/2![STARLUX Airlines logo]()
$1,280
This Alaska Airlines deal was found by Cheapflights users on 8/2. 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 9/37:35 pm
ICN
- PDX
1 stop16h 15m
Alaska Airlines
Thu 9/39:55 pm
PDX
- ICN
2 stops51h 35m
Alaska Airlines
Deal found 8/2![Alaska Airlines logo]()
$1,177
This Philippine Airlines deal was found by Cheapflights users on 8/2. 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.
Thu 8/278:30 pm
ICN
- PDX
2 stops40h 20m
Multiple Airlines
Tue 9/16:20 am
PDX
- ICN
2 stops31h 40m
Multiple Airlines
Deal found 8/2![Multiple Airlines logo]()
$1,114
Last-minute flights from South Korea to WashingtonDiscover last-minute flight deals from South Korea to Washington. Data last updated August 3, 2026 and is based on user searches.
Discover last-minute flight deals from South Korea to Washington. Data last updated August 3, 2026 and is based on user searches.
This Philippine Airlines deal was found by Cheapflights users on 8/3. 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 8/47:20 am
ICN
- SEA
1 stop28h 45m
Philippine Airlines
Wed 8/1911:10 pm
SEA
- ICN
1 stop38h 50m
Philippine Airlines
Deal found 8/3![Philippine Airlines logo]()
$870
This Justfly.com deal was found by Cheapflights users on 8/3. 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.
Wed 8/58:30 pm
ICN
- SEA
1 stop39h 35m
Philippine Airlines
Wed 8/1911:10 pm
SEA
- ICN
1 stop38h 50m
Philippine Airlines
Deal found 8/3![Philippine Airlines logo]()
$849
This WhyPayMore deal was found by Cheapflights users on 8/2. 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.
Wed 8/57:20 am
ICN
- SEA
1 stop28h 45m
Philippine Airlines
Thu 8/2011:10 pm
SEA
- ICN
1 stop38h 50m
Philippine Airlines
Deal found 8/2![Philippine Airlines logo]()
$860
This Cheapflightsfares deal was found by Cheapflights users on 8/3. 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 8/67:20 am
ICN
- SEA
1 stop28h 45m
Philippine Airlines
Wed 8/1911:10 pm
SEA
- ICN
1 stop28h 05m
Philippine Airlines
Deal found 8/3![Philippine Airlines logo]()
$832
This United Airlines deal was found by Cheapflights users on 8/3. 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 8/2511:30 am
ICN
- SEA
2 stops20h 09m
United Airlines
Thu 9/105:20 pm
SEA
- ICN
1 stop19h 00m
United Airlines
Deal found 8/3![United Airlines logo]()
$865
This United Airlines deal was found by Cheapflights users on 8/1. 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 8/2511:30 am
ICN
- SEA
1 stop18h 54m
United Airlines
Tue 9/157:11 am
SEA
- ICN
1 stop15h 49m
United Airlines
Deal found 8/1![United Airlines logo]()
$873
This Trip.com deal was found by Cheapflights users on 8/3. 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 8/275:45 pm
ICN
- SEA
1 stop12h 37m
Air Canada
Wed 9/25:50 am
SEA
- ICN
1 stop18h 15m
Air Canada
Deal found 8/3![Air Canada logo]()
$822
This Hanatour deal was found by Cheapflights users on 8/3. 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 Hanatour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/279:20 pm
ICN
- SEA
Nonstop10h 25m
Asiana Airlines
Tue 9/112:10 am
SEA
- ICN
Nonstop12h 20m
Asiana Airlines
Deal found 8/3![Asiana Airlines logo]()
$888
This Justfly.com deal was found by Cheapflights users on 8/1. 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.
Sun 8/309:20 pm
ICN
- SEA
Nonstop10h 25m
Asiana Airlines
Sun 9/612:10 am
SEA
- ICN
Nonstop12h 20m
Asiana Airlines
Deal found 8/1![Asiana Airlines logo]()
$875
This Justfly.com deal was found by Cheapflights users on 8/1. 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.
Mon 8/319:20 pm
ICN
- SEA
Nonstop10h 25m
Asiana Airlines
Sun 9/612:10 am
SEA
- ICN
Nonstop12h 20m
Asiana Airlines
Deal found 8/1![Asiana Airlines logo]()
$826
This United Airlines deal was found by Cheapflights users on 8/1. 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 8/314:50 pm
ICN
- SEA
1 stop15h 24m
United Airlines
Wed 9/93:54 pm
SEA
- ICN
2 stops20h 26m
United Airlines
Deal found 8/1![United Airlines logo]()
$867
This United Airlines deal was found by Cheapflights users on 7/31. 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 8/3111:30 am
ICN
- SEA
3 stops25h 45m
United Airlines
Mon 9/77:35 pm
SEA
- ICN
1 stop16h 45m
United Airlines
Deal found 7/31![United Airlines logo]()
$871
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 August 3, 2026.
Search for one-way flight options from South Korea to Washington. Find affordable one-way fares based on user searches. Data last updated August 3, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 9/307:15 pm
ICN
- SEA
1 stop15h 52m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$427
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 10/197:15 pm
ICN
- SEA
1 stop36h 49m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$432
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 8/317:15 pm
ICN
- SEA
1 stop32h 07m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$433
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 9/266:00 pm
ICN
- SEA
1 stop19h 40m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$434
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 10/127:15 pm
ICN
- SEA
1 stop32h 40m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$435
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 10/317:45 pm
ICN
- SEA
1 stop17h 40m
Multiple Airlines
Deal found 7/31![Multiple Airlines logo]()
$436
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 11/27:45 pm
ICN
- SEA
1 stop29h 37m
Multiple Airlines
Deal found 7/31![Multiple Airlines logo]()
$437
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 10/307:45 pm
ICN
- SEA
1 stop28h 35m
Multiple Airlines
Deal found 7/31![Multiple Airlines logo]()
$438
This Mytrip deal was found by Cheapflights users on 7/30. 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.
Mon 9/212:35 am
ICN
- SEA
2 stops31h 57m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$440
This Mytrip deal was found by Cheapflights users on 8/1. 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.
Tue 9/1510:30 pm
ICN
- SEA
2 stops27h 35m
Multiple Airlines
Deal found 8/1![Multiple Airlines logo]()
$441
This Mytrip deal was found by Cheapflights users on 7/31. 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 9/192:35 am
ICN
- SEA
2 stops31h 57m
Multiple Airlines
Deal found 7/31![Multiple Airlines logo]()
$442
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 9/287:15 pm
ICN
- SEA
2 stops30h 27m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$443
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 August 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $680 (YBTour) |
One-way from | $423 (Kiwi.com) |
Popular in | June |
Cheapest in | November |
Average price | $981 |
Good round-trip deal | $834 or less |
Good one-way deal | $714 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 August 3, 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
Thu 10/1
11:30 am-12:23 pm
1 stop16h 53m
Seattle/Tacoma Intl
Wed 10/14
3:55 pm-3:00 pm
2 stops31h 05m
$767
IncheonSeattle
ICN - SEA
ICNSEA
Incheon Intl
Wed 9/9
11:30 am-3:52 pm
2 stops20h 22m
Seattle/Tacoma Intl
Wed 9/16
4:30 pm-4:20 am
2 stops19h 50m
$795
IncheonSeattle
ICN - SEA
ICNSEA
Incheon Intl
Wed 9/9
11:30 am-3:52 pm
2 stops20h 22m
Seattle/Tacoma Intl
Tue 9/15
4:45 pm-4:20 am
2 stops19h 35m
$798
IncheonSeattle
ICN - SEA
ICNSEA
Incheon Intl
Mon 12/21
12:45 pm-9:49 pm
2 stops26h 04m
Seattle/Tacoma Intl
Sun 12/27
1:18 pm-5:40 am
1 stop23h 22m
$814
BusanSeattle
PUS - SEA
PUSSEA
Busan Gimhae
Mon 12/14
11:50 am-6:10 pm
1 stop23h 20m
Seattle/Tacoma Intl
Sun 12/27
12:10 am-6:50 pm
1 stop25h 40m
$848
IncheonSeattle
ICN - SEA
ICNSEA
Incheon Intl
Fri 9/11
4:50 pm-4:14 pm
1 stop15h 24m
Seattle/Tacoma Intl
Wed 9/23
3:30 pm-3:00 pm
1 stop31h 30m
$853
IncheonSeattle
ICN - SEA
ICNSEA
Incheon Intl
Wed 9/16
11:30 am-2:24 pm
1 stop18h 54m
Seattle/Tacoma Intl
Mon 10/26
7:35 pm-4:40 am
1 stop17h 05m
$862
IncheonPortland
ICN - PDX
ICNPDX
Incheon Intl
Thu 9/17
7:35 pm-6:38 pm
1 stop15h 03m
Portland
Sat 10/10
5:48 pm-5:30 pm
2 stops31h 42m
$930
BusanSeattle
PUS - SEA
PUSSEA
Busan Gimhae
Tue 9/15
8:00 am-4:30 pm
2 stops24h 30m
Seattle/Tacoma Intl
Tue 9/22
7:15 am-7:35 pm
2 stops20h 20m
$938
BusanSeattle
PUS - SEA
PUSSEA
Busan Gimhae
Sun 10/18
10:30 am-7:15 pm
1 stop24h 45m
Seattle/Tacoma Intl
Sun 11/8
12:10 am-10:50 am
1 stop17h 40m
$952
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-PDX
ICN-SEA
PUS-SEA
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 South Korea to Washington
KR0-USWA
ICN-PDX
ICN-SEA
PUS-SEA
GMP-SEA
What is the cheapest month to book a flight from South Korea to State of Washington?
Currently, November is the cheapest month in which you can book a flight from South Korea to State of Washington (average of $555). Flying from South Korea to State of Washington in June is currently the most expensive (average of $1,111). 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 August 3, 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 August 3, 2026.
The most flights from KR0 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 (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 August 3, 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
Comfort
8.3
Crew
8.7
Food
8.1
Overall
8.4
Boarding
8.5
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Entertainment
8.2
Comfort
8.3
Crew
8.7
Food
8.1
Overall
8.4
Boarding
8.5
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Entertainment
8.2
Comfort
8.3
Crew
8.7
Food
8.1
Overall
8.4
Boarding
8.5
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Entertainment
8.2
Comfort
8.3
Crew
8.7
Food
8.1
Overall
8.4
Boarding
8.5
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Entertainment
8.2
Comfort
8.3
Crew
8.7
Food
8.1
Overall
8.4
Boarding
8.5
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Entertainment
8.2
Comfort
8.3
Crew
8.7
Food
8.1
Overall
8.4
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 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
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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 August 3, 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 August 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$351 | Average$866 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$464 | Average$744 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$472 | Average$518 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$476 | Average$695 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$484 | Average$732 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$512 | Average$615 | FlexibilityNo cancel fee | On-time76% |