$365+ 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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — SEA
Jun 2 — Jun 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 May 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 May 3, 2026.
This Alaska Airlines deal was found by Cheapflights users on 4/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/157:35 pm
ICN
- SEA
Nonstop10h 30m
Alaska Airlines
Mon 7/132:05 pm
SEA
- ICN
Nonstop11h 25m
Alaska Airlines
Deal found 4/30![Alaska Airlines logo]()
$757
This Alaska Airlines deal was found by Cheapflights users on 4/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/157:35 pm
ICN
- SEA
Nonstop10h 30m
Alaska Airlines
Fri 7/102:05 pm
SEA
- ICN
Nonstop11h 25m
Alaska Airlines
Deal found 4/30![Alaska Airlines logo]()
$795
This Priceline deal was found by Cheapflights users on 4/28. 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 Priceline 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 31m
Air Canada
Fri 1/15:45 am
SEA
- ICN
1 stop18h 25m
Air Canada
Deal found 4/28![Air Canada logo]()
$800
This KAYAK deal was found by Cheapflights users on 4/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/511:30 am
ICN
- SEA
1 stop23h 02m
Asiana Airlines
Tue 7/145:00 am
SEA
- ICN
1 stop18h 00m
Asiana Airlines
Deal found 4/28![Asiana Airlines logo]()
$804
This United Airlines deal was found by Cheapflights users on 4/28. 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 12/2312:45 pm
ICN
- SEA
2 stops52h 03m
United Airlines
Sat 1/25:05 pm
SEA
- ICN
2 stops30h 10m
United Airlines
Deal found 4/28![United Airlines logo]()
$817
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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.
Sun 5/177:35 pm
ICN
- SEA
Nonstop10h 00m
Alaska Airlines
Sun 8/22:05 pm
SEA
- ICN
Nonstop11h 25m
Alaska Airlines
Deal found 4/29![Alaska Airlines logo]()
$819
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Wed 12/236:00 pm
ICN
- SEA
1 stop22h 21m
United Airlines
Fri 1/19:05 am
SEA
- ICN
2 stops38h 10m
United Airlines
Deal found 4/29![United Airlines logo]()
$821
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/47:35 pm
ICN
- SEA
Nonstop10h 00m
Alaska Airlines
Wed 5/61:40 pm
SEA
- ICN
Nonstop11h 50m
Alaska Airlines
Deal found 5/1![Alaska Airlines logo]()
$823
This Gotogate deal was found by Cheapflights users on 4/30. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/155:45 pm
ICN
- PDX
1 stop17h 21m
Air Canada
Mon 10/197:45 pm
PDX
- ICN
1 stop28h 20m
Air Canada
Deal found 4/30![Air Canada logo]()
$827
This Alaska Airlines deal was found by Cheapflights users on 4/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/197:35 pm
ICN
- SEA
Nonstop10h 30m
Alaska Airlines
Sun 8/301:35 pm
SEA
- ICN
Nonstop11h 55m
Alaska Airlines
Deal found 4/30![Alaska Airlines logo]()
$831
This WhyPayMore deal was found by Cheapflights users on 4/28. 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.
Mon 6/812:40 pm
GMP
- SEA
1 stop17h 45m
ANA
Tue 8/2510:45 am
SEA
- GMP
2 stops32h 20m
ANA
Deal found 4/28![ANA logo]()
$854
This Gotogate deal was found by Cheapflights users on 4/28. 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.
Tue 6/97:40 am
GMP
- SEA
2 stops26h 50m
ANA
Thu 8/274:30 pm
SEA
- GMP
1 stop26h 35m
ANA
Deal found 4/28![ANA logo]()
$857
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 May 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 May 3, 2026.
This WhyPayMore deal was found by Cheapflights users on 4/28. 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 6/237:40 am
GMP
- SEA
1 stop22h 45m
ANA
Tue 9/154:30 pm
SEA
- GMP
1 stop34h 05m
ANA
Deal found 4/28![ANA logo]()
$880
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/147:00 pm
ICN
- SEA
Nonstop10h 41m
Delta
Wed 10/147:20 am
SEA
- ICN
1 stop18h 00m
Delta
Deal found 4/29![Delta logo]()
$1,004
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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 6/287:35 pm
ICN
- PDX
2 stops29h 46m
Alaska Airlines
Sat 8/226:50 pm
PDX
- ICN
2 stops30h 40m
Alaska Airlines
Deal found 4/28![Alaska Airlines logo]()
$1,102
This EVA Air deal was found by Cheapflights users on 4/29. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/147:10 pm
PUS
- SEA
1 stop16h 10m
EVA Air
Sat 10/171:30 am
SEA
- PUS
1 stop24h 30m
EVA Air
Deal found 4/29![EVA Air logo]()
$1,109
This United Airlines deal was found by Cheapflights users on 5/2. 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.
Tue 9/84:50 pm
ICN
- SEA
1 stop17h 39m
United Airlines
Mon 9/143:51 pm
SEA
- ICN
2 stops31h 09m
United Airlines
Deal found 5/2![United Airlines logo]()
$1,134
This Asiana Airlines deal was found by Cheapflights users on 4/30. 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.
Tue 6/169:20 pm
ICN
- SEA
Nonstop9h 55m
Asiana Airlines
Tue 6/2312:10 am
SEA
- ICN
Nonstop12h 20m
Asiana Airlines
Deal found 4/30![Asiana Airlines logo]()
$1,154
This Korean Air deal was found by Cheapflights users on 4/29. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:00 pm
ICN
- GEG
1 stop14h 09m
Korean Air
Mon 10/196:30 am
GEG
- ICN
1 stop19h 20m
Korean Air
Deal found 4/29![Korean Air logo]()
$1,156
This Qatar Airways deal was found by Cheapflights users on 5/1. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/191:20 am
ICN
- SEA
1 stop27h 05m
Multiple Airlines
Tue 8/254:25 pm
SEA
- ICN
1 stop32h 40m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$1,171
This Qatar Airways deal was found by Cheapflights users on 5/1. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/131:20 am
ICN
- SEA
1 stop27h 05m
Qatar Airways
Wed 10/144:25 pm
SEA
- ICN
1 stop32h 40m
Qatar Airways
Deal found 5/1![Qatar Airways logo]()
$1,187
This Singapore Airlines deal was found by Cheapflights users on 4/30. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/148:15 am
PUS
- SEA
1 stop40h 30m
Singapore Airlines
Sun 10/1810:15 am
SEA
- PUS
1 stop28h 20m
Singapore Airlines
Deal found 4/30![Singapore Airlines logo]()
$1,260
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/165:50 pm
ICN
- GEG
2 stops21h 10m
American Airlines
Mon 10/199:04 am
GEG
- ICN
2 stops38h 41m
American Airlines
Deal found 4/29![American Airlines logo]()
$1,348
This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/98:00 am
GMP
- PDX
2 stops30h 27m
Japan Airlines
Mon 6/227:00 am
PDX
- GMP
2 stops22h 15m
Japan Airlines
Deal found 4/30![Japan Airlines logo]()
$1,460
This Gotogate deal was found by Cheapflights users on 4/28. 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 9/512:40 pm
GMP
- SEA
1 stop17h 45m
ANA
Sun 9/134:30 pm
SEA
- GMP
1 stop26h 35m
ANA
Deal found 4/28![ANA logo]()
$962
This Delta deal was found by Cheapflights users on 4/28. 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 9/57:00 pm
ICN
- SEA
Nonstop10h 37m
Delta
Sun 9/135:40 pm
SEA
- ICN
1 stop31h 40m
Delta
Deal found 4/28![Delta logo]()
$1,067
This KAYAK deal was found by Cheapflights users on 4/30. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/177:55 pm
GMP
- SEA
1 stop34h 30m
ANA
Thu 6/44:30 pm
SEA
- GMP
1 stop26h 35m
ANA
Deal found 4/30![ANA logo]()
$1,014
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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 6/207:35 pm
ICN
- GEG
2 stops55h 36m
Alaska Airlines
Sat 7/256:20 am
GEG
- ICN
2 stops43h 10m
Alaska Airlines
Deal found 4/28![Alaska Airlines logo]()
$1,180
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Mon 5/1811:30 am
ICN
- SEA
2 stops41h 46m
United Airlines
Mon 5/255:00 am
SEA
- ICN
1 stop31h 20m
United Airlines
Deal found 4/30![United Airlines logo]()
$1,193
This Delta deal was found by Cheapflights users on 4/28. 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 7/77:00 pm
ICN
- SEA
Nonstop10h 41m
Delta
Tue 7/149:39 pm
SEA
- ICN
1 stop27h 41m
Delta
Deal found 4/28![Delta logo]()
$1,095
This Gotogate deal was found by Cheapflights users on 4/30. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/148:10 am
GMP
- PDX
2 stops22h 35m
Multiple Airlines
Sun 11/157:10 pm
PDX
- GMP
2 stops48h 50m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$1,244
This China Eastern deal was found by Cheapflights users on 4/30. 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 China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/168:35 am
PUS
- PDX
2 stops23h 38m
China Eastern
Sun 10/186:30 am
PDX
- PUS
2 stops37h 05m
China Eastern
Deal found 4/30![China Eastern logo]()
$2,492
This KAYAK deal was found by Cheapflights users on 4/30. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/187:55 pm
GMP
- SEA
1 stop34h 30m
ANA
Wed 6/310:45 am
SEA
- GMP
2 stops32h 20m
ANA
Deal found 4/30![ANA logo]()
$1,079
This Alaska Airlines deal was found by Cheapflights users on 4/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/267:35 pm
ICN
- PDX
2 stops20h 17m
Alaska Airlines
Wed 7/87:19 am
PDX
- ICN
2 stops18h 11m
Alaska Airlines
Deal found 4/30![Alaska Airlines logo]()
$1,192
This Korean Air deal was found by Cheapflights users on 4/28. 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.
Wed 10/144:30 pm
PUS
- SEA
2 stops22h 04m
Korean Air
Sun 10/1812:35 pm
SEA
- PUS
1 stop15h 00m
Korean Air
Deal found 4/28![Korean Air logo]()
$1,324
This United Airlines deal was found by Cheapflights users on 5/3. 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.
Fri 6/1211:30 am
ICN
- SEA
1 stop28h 02m
United Airlines
Sat 8/17:05 pm
SEA
- ICN
1 stop27h 55m
United Airlines
Deal found 5/3![United Airlines logo]()
$1,218
This Qatar Airways deal was found by Cheapflights users on 4/30. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:30 pm
ICN
- GEG
2 stops43h 55m
Qatar Airways
Mon 10/197:00 am
GEG
- ICN
2 stops42h 05m
Qatar Airways
Deal found 4/30![Qatar Airways logo]()
$1,385
This Singapore Airlines deal was found by Cheapflights users on 4/28. 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.
Tue 8/2511:50 pm
ICN
- PDX
3 stops39h 34m
Multiple Airlines
Sat 11/219:50 pm
PDX
- ICN
2 stops43h 00m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$1,334
This YBTour deal was found by Cheapflights users on 4/28. 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.
Mon 6/812:40 pm
GMP
- SEA
2 stops21h 50m
ANA
Tue 8/255:22 pm
SEA
- GMP
2 stops25h 43m
ANA
Deal found 4/28![ANA logo]()
$1,103
This Alaska Airlines deal was found by Cheapflights users on 4/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/107:35 pm
ICN
- PDX
2 stops29h 46m
Alaska Airlines
Sat 6/206:19 am
PDX
- ICN
1 stop19h 11m
Alaska Airlines
Deal found 4/30![Alaska Airlines logo]()
$1,234
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/134:40 pm
ICN
- PDX
1 stop31h 56m
Delta
Sun 7/56:40 am
PDX
- ICN
1 stop19h 10m
Delta
Deal found 4/29![Delta logo]()
$1,246
This Japan Airlines deal was found by Cheapflights users on 4/29. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/238:00 am
GMP
- PDX
2 stops21h 50m
Japan Airlines
Tue 10/277:00 am
PDX
- GMP
2 stops23h 05m
Japan Airlines
Deal found 4/29![Japan Airlines logo]()
$1,532
Last-minute flights from South Korea to WashingtonDiscover last-minute flight deals from South Korea to Washington. Data last updated May 3, 2026 and is based on user searches.
Discover last-minute flight deals from South Korea to Washington. Data last updated May 3, 2026 and is based on user searches.
This Trip.com deal was found by Cheapflights users on 4/29. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/412:40 pm
GMP
- SEA
1 stop17h 45m
ANA
Tue 5/54:30 pm
SEA
- GMP
1 stop26h 35m
ANA
Deal found 4/29![ANA logo]()
$924
This Gotogate deal was found by Cheapflights users on 4/28. 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 5/67:40 am
GMP
- SEA
2 stops26h 50m
ANA
Sun 5/104:30 pm
SEA
- GMP
1 stop26h 35m
ANA
Deal found 4/28![ANA logo]()
$912
This Korean Air deal was found by Cheapflights users on 4/30. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/84:40 pm
ICN
- SEA
Nonstop10h 00m
Korean Air
Mon 5/181:00 pm
SEA
- ICN
Nonstop11h 50m
Korean Air
Deal found 4/30![Korean Air logo]()
$869
This Delta deal was found by Cheapflights users on 4/30. 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.
Fri 5/84:40 pm
ICN
- SEA
Nonstop10h 00m
Delta
Sat 5/169:45 pm
SEA
- ICN
1 stop27h 35m
Delta
Deal found 4/30![Delta logo]()
$875
This WhyPayMore deal was found by Cheapflights users on 4/29. 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 WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/115:45 pm
ICN
- PDX
1 stop31h 45m
Air Canada
Tue 6/23:30 pm
PDX
- ICN
1 stop32h 35m
Air Canada
Deal found 4/29![Air Canada logo]()
$935
This WhyPayMore deal was found by Cheapflights users on 4/29. 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 WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/115:45 pm
ICN
- SEA
1 stop20h 55m
Air Canada
Tue 6/23:00 pm
SEA
- ICN
1 stop33h 05m
Air Canada
Deal found 4/29![Air Canada logo]()
$935
This Korean Air deal was found by Cheapflights users on 4/30. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/114:40 pm
ICN
- SEA
Nonstop10h 00m
Korean Air
Tue 6/21:05 pm
SEA
- ICN
Nonstop11h 45m
Korean Air
Deal found 4/30![Korean Air logo]()
$937
This Air Canada deal was found by Cheapflights users on 4/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/125:45 pm
ICN
- SEA
1 stop20h 55m
Air Canada
Tue 6/27:20 pm
SEA
- ICN
1 stop28h 45m
Air Canada
Deal found 4/29![Air Canada logo]()
$934
This Kiwi.com deal was found by Cheapflights users on 4/29. 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.
Wed 5/137:35 pm
ICN
- SEA
Nonstop10h 00m
Multiple Airlines
Sat 5/1610:30 am
SEA
- ICN
3 stops43h 10m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$893
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/137:00 pm
ICN
- SEA
Nonstop10h 11m
Delta
Sat 5/169:45 pm
SEA
- ICN
1 stop27h 35m
Delta
Deal found 4/29![Delta logo]()
$948
This KAYAK deal was found by Cheapflights users on 4/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/187:55 pm
GMP
- SEA
1 stop34h 30m
ANA
Mon 10/54:30 pm
SEA
- GMP
1 stop26h 35m
ANA
Deal found 4/28![ANA logo]()
$897
This KAYAK deal was found by Cheapflights users on 4/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/197:40 am
GMP
- SEA
1 stop22h 45m
ANA
Mon 10/54:30 pm
SEA
- GMP
1 stop26h 35m
ANA
Deal found 4/28![ANA logo]()
$993
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 May 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 May 3, 2026.
This Alaska Airlines deal was found by Cheapflights users on 4/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/87:35 pm
ICN
- SEA
Nonstop10h 00m
Alaska Airlines
Deal found 4/30![Alaska Airlines logo]()
$365
This United Airlines deal was found by Cheapflights users on 4/30. 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 5/204:50 pm
ICN
- SEA
2 stops37h 46m
United Airlines
Deal found 4/30![United Airlines logo]()
$390
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Thu 5/214:50 pm
ICN
- SEA
1 stop20h 03m
United Airlines
Deal found 4/29![United Airlines logo]()
$392
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Tue 5/264:50 pm
ICN
- SEA
2 stops31h 06m
United Airlines
Deal found 4/30![United Airlines logo]()
$396
This Kiwi.com deal was found by Cheapflights users on 4/29. 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.
Fri 5/227:35 pm
ICN
- SEA
Nonstop10h 00m
Alaska Airlines
Deal found 4/29![Alaska Airlines logo]()
$397
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Mon 5/2511:30 am
ICN
- SEA
2 stops36h 30m
United Airlines
Deal found 4/29![United Airlines logo]()
$398
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Thu 6/411:30 am
ICN
- SEA
2 stops26h 29m
United Airlines
Deal found 4/30![United Airlines logo]()
$401
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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.
Wed 5/207:35 pm
ICN
- SEA
Nonstop10h 00m
Alaska Airlines
Deal found 4/28![Alaska Airlines logo]()
$402
This Expedia deal was found by Cheapflights users on 4/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/107:35 pm
ICN
- SEA
Nonstop10h 00m
Alaska Airlines
Deal found 4/30![Alaska Airlines logo]()
$403
This KAYAK deal was found by Cheapflights users on 4/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/124:50 pm
ICN
- SEA
1 stop17h 42m
Asiana Airlines
Deal found 4/28![Asiana Airlines logo]()
$411
This Ovago deal was found by Cheapflights users on 4/28. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/214:50 pm
ICN
- SEA
1 stop20h 03m
Asiana Airlines
Deal found 4/28![Asiana Airlines logo]()
$412
This Gurufare deal was found by Cheapflights users on 4/28. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/194:50 pm
ICN
- SEA
1 stop20h 16m
Asiana Airlines
Deal found 4/28![Asiana Airlines logo]()
$413
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 May 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $757 (Alaska Airlines) |
One-way from | $365 (Alaska Airlines) |
Popular in | August |
Cheapest in | November |
Average price | $653 |
Good round-trip deal | $860 or less |
Good one-way deal | $651 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 May 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
SeoulSeattle
GMP - SEA
GMPSEA
Seoul Gimpo Intl
Tue 6/23
7:40 am-2:25 pm
1 stop22h 45m
Seattle/Tacoma Intl
Tue 9/15
4:30 pm-6:35 pm
1 stop34h 05m
$880
SeoulSeattle
GMP - SEA
GMPSEA
Seoul Gimpo Intl
Sat 9/5
12:40 pm-2:25 pm
1 stop17h 45m
Seattle/Tacoma Intl
Sun 9/13
4:30 pm-11:05 am
1 stop26h 35m
$962
IncheonSeattle
ICN - SEA
ICNSEA
Incheon Intl
Tue 7/14
7:00 pm-1:41 pm
Nonstop10h 41m
Seattle/Tacoma Intl
Wed 10/14
7:20 am-5:20 pm
1 stop18h 00m
$1,004
SeoulSeattle
GMP - SEA
GMPSEA
Seoul Gimpo Intl
Sun 5/17
7:55 pm-2:25 pm
1 stop34h 30m
Seattle/Tacoma Intl
Thu 6/4
4:30 pm-11:05 am
1 stop26h 35m
$1,014
IncheonSeattle
ICN - SEA
ICNSEA
Incheon Intl
Sat 9/5
7:00 pm-1:37 pm
Nonstop10h 37m
Seattle/Tacoma Intl
Sun 9/13
5:40 pm-5:20 pm
1 stop31h 40m
$1,067
SeoulSeattle
GMP - SEA
GMPSEA
Seoul Gimpo Intl
Mon 5/18
7:55 pm-2:25 pm
1 stop34h 30m
Seattle/Tacoma Intl
Wed 6/3
10:45 am-11:05 am
2 stops32h 20m
$1,079
IncheonSeattle
ICN - SEA
ICNSEA
Incheon Intl
Tue 7/7
7:00 pm-1:41 pm
Nonstop10h 41m
Seattle/Tacoma Intl
Tue 7/14
9:39 pm-5:20 pm
1 stop27h 41m
$1,095
IncheonPortland
ICN - PDX
ICNPDX
Incheon Intl
Sun 6/28
7:35 pm-9:21 am
2 stops29h 46m
Portland
Sat 8/22
6:50 pm-5:30 pm
2 stops30h 40m
$1,102
SeoulSeattle
GMP - SEA
GMPSEA
Seoul Gimpo Intl
Mon 6/8
12:40 pm-6:30 pm
2 stops21h 50m
Seattle/Tacoma Intl
Tue 8/25
5:22 pm-11:05 am
2 stops25h 43m
$1,103
BusanSeattle
PUS - SEA
PUSSEA
Busan Gimhae
Wed 10/14
7:10 pm-7:20 pm
1 stop16h 10m
Seattle/Tacoma Intl
Sat 10/17
1:30 am-6:00 pm
1 stop24h 30m
$1,109
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.
GMP-SEA
ICN-SEA
ICN-PDX
PUS-SEA
ICN-GEG
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
GMP-SEA
ICN-SEA
ICN-PDX
PUS-SEA
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.
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 $982). 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 May 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 May 3, 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).
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 May 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.
Boarding
8.5
Entertainment
8.2
Overall
8.4
Comfort
8.3
Crew
8.7
Food
8.1
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Boarding
8.5
Entertainment
8.2
Overall
8.4
Comfort
8.3
Crew
8.7
Food
8.1
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Boarding
8.5
Entertainment
8.2
Overall
8.4
Comfort
8.3
Crew
8.7
Food
8.1
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Boarding
8.5
Entertainment
8.2
Overall
8.4
Comfort
8.3
Crew
8.7
Food
8.1
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Boarding
8.5
Entertainment
8.2
Overall
8.4
Comfort
8.3
Crew
8.7
Food
8.1
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Boarding
8.5
Entertainment
8.2
Overall
8.4
Comfort
8.3
Crew
8.7
Food
8.1
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 May 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 7 airlines flying from South Korea to Washington
Discover the top 7 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 May 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$351 | Average$866 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$472 | Average$517 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$476 | Average$596 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$477 | Average$615 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$485 | Average$728 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$486 | Average$746 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$583 | Average$638 | FlexibilityNo cancel fee | On-timeN/A |