$467+ Cheap flights from Seoul (SEL) to Washington
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — SEA
Nov 2 — Nov 91
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Seoul to Washington with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Seoul to Washington
Cheapest
Best
Last-minute
One-way
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 October 3, 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 October 3, 2026.
This YBTour deal was found by Cheapflights users on 9/30. 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 YBTour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/128:00 pm -
Nonstop9h 55m
Sun 11/2212:40 pm -
Nonstop11h 55m
Deal found 9/30![Alaska Airlines logo]()
$714
This WhyPayMore deal was found by Cheapflights users on 9/29. 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 12/218:00 pm -
Nonstop9h 55m
Wed 1/1312:40 pm -
Nonstop11h 55m
Deal found 9/29![Alaska Airlines logo]()
$721
This Tourvis deal was found by Cheapflights users on 9/30. 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 Tourvis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/188:00 pm -
Nonstop9h 55m
Sat 12/2612:40 pm -
Nonstop11h 55m
Deal found 9/30![Alaska Airlines logo]()
$793
This Cheapflightsfares deal was found by Cheapflights users on 9/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:30 am -
1 stop28h 15m
Thu 11/269:30 pm -
1 stop28h 40m
Deal found 9/29![Philippine Airlines logo]()
$804
This Gotogate deal was found by Cheapflights users on 9/29. 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.
Fri 10/307:30 am -
1 stop28h 15m
Fri 11/69:30 pm -
1 stop39h 35m
Deal found 9/29![Philippine Airlines logo]()
$816
This Gotogate deal was found by Cheapflights users on 9/29. 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.
Wed 10/287:30 am -
1 stop28h 15m
Mon 11/29:30 pm -
1 stop39h 35m
Deal found 9/29![Philippine Airlines logo]()
$857
This Gotogate deal was found by Cheapflights users on 9/30. 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 11/128:30 pm -
1 stop39h 15m
Sun 11/229:30 pm -
1 stop21h 30m
Deal found 9/30![Philippine Airlines logo]()
$858
This SmartFares deal was found by Cheapflights users on 9/29. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/128:30 pm -
1 stop39h 35m
Fri 11/139:30 pm -
1 stop39h 35m
Deal found 9/29![Philippine Airlines logo]()
$859
This FlightHub deal was found by Cheapflights users on 9/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/128:30 pm -
1 stop39h 35m
Thu 11/129:30 pm -
1 stop39h 35m
Deal found 9/29![Philippine Airlines logo]()
$863
This Gotogate deal was found by Cheapflights users on 9/29. 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.
Thu 10/87:20 am -
1 stop28h 45m
Thu 10/1511:10 pm -
1 stop38h 50m
Deal found 9/29![Philippine Airlines logo]()
$864
This SmartFares deal was found by Cheapflights users on 9/29. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/128:30 pm -
1 stop39h 35m
Mon 4/1211:55 pm -
1 stop38h 00m
Deal found 9/29![Philippine Airlines logo]()
$875
This WhyPayMore deal was found by Cheapflights users on 9/29. 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.
Tue 10/67:20 am -
1 stop28h 45m
Tue 10/1311:10 pm -
1 stop28h 05m
Deal found 9/29![Philippine Airlines logo]()
$884
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 October 3, 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 October 3, 2026.
This Philippine Airlines deal was found by Cheapflights users on 9/28. 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 Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/58:30 pm -
1 stop39h 15m
Sun 11/89:30 pm -
1 stop39h 35m
Deal found 9/28![Philippine Airlines logo]()
$886
This United Airlines deal was found by Cheapflights users on 9/29. 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 10/286:00 pm -
2 stops17h 09m
Mon 11/25:05 am -
2 stops31h 35m
Deal found 9/29![United Airlines logo]()
$967
This Delta deal was found by Cheapflights users on 10/1. 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.
Mon 11/236:45 pm -
1 stop15h 16m
Sun 11/297:00 am -
1 stop17h 45m
Deal found 10/1![Delta logo]()
$978
This Cathay Pacific deal was found by Cheapflights users on 9/30. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/201:55 am -
1 stop23h 50m
Fri 2/2611:26 am -
2 stops33h 24m
Deal found 9/30![Cathay Pacific logo]()
$1,046
This Korean Air deal was found by Cheapflights users on 9/28. 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.
Sun 10/189:20 pm -
Nonstop9h 55m
Fri 10/231:00 pm -
Nonstop11h 50m
Deal found 9/28![Korean Air logo]()
$1,117
This United Airlines deal was found by Cheapflights users on 9/29. 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 11/56:00 pm -
2 stops20h 50m
Sun 11/81:16 pm -
1 stop23h 24m
Deal found 9/29![United Airlines logo]()
$971
This Delta deal was found by Cheapflights users on 9/30. 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.
Tue 10/276:45 pm -
1 stop18h 25m
Thu 10/296:00 am -
1 stop18h 20m
Deal found 9/30![Delta logo]()
$986
This United Airlines deal was found by Cheapflights users on 10/1. 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.
Thu 11/512:45 pm -
1 stop25h 12m
Sun 11/87:00 am -
1 stop16h 15m
Deal found 10/1![United Airlines logo]()
$978
This Cathay Pacific deal was found by Cheapflights users on 10/2. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/53:00 pm -
2 stops40h 44m
Sun 11/810:03 am -
2 stops21h 37m
Deal found 10/2![Cathay Pacific logo]()
$1,096
This Delta deal was found by Cheapflights users on 10/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/164:10 pm -
Nonstop9h 55m
Mon 11/237:20 am -
1 stop17h 20m
Deal found 10/2![Delta logo]()
$1,009
This United Airlines deal was found by Cheapflights users on 10/1. 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 11/2312:45 pm -
2 stops25h 26m
Sun 11/297:00 am -
1 stop29h 40m
Deal found 10/1![United Airlines logo]()
$978
This Delta deal was found by Cheapflights users on 10/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/124:10 pm -
Nonstop9h 55m
Mon 11/237:20 am -
1 stop17h 20m
Deal found 10/2![Delta logo]()
$1,009
This United Airlines deal was found by Cheapflights users on 10/2. 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.
Thu 11/126:00 pm -
2 stops18h 37m
Mon 11/2312:20 pm -
2 stops24h 20m
Deal found 10/2![United Airlines logo]()
$984
This United Airlines deal was found by Cheapflights users on 10/1. 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.
Fri 10/2311:30 am -
1 stop27h 56m
Mon 11/212:20 pm -
2 stops24h 20m
Deal found 10/1![United Airlines logo]()
$988
This Delta deal was found by Cheapflights users on 10/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/236:45 pm -
Nonstop10h 11m
Sun 1/37:52 pm -
1 stop28h 48m
Deal found 10/2![Delta logo]()
$1,220
This Delta deal was found by Cheapflights users on 9/29. 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 12/236:45 pm -
Nonstop10h 11m
Fri 1/15:59 pm -
1 stop30h 36m
Deal found 9/29![Delta logo]()
$1,369
Last-minute flights from Seoul to WashingtonDiscover last-minute flight deals from Seoul to Washington. Data last updated October 3, 2026 and is based on user searches.
Discover last-minute flight deals from Seoul to Washington. Data last updated October 3, 2026 and is based on user searches.
This WhyPayMore deal was found by Cheapflights users on 9/29. 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.
Tue 10/67:20 am -
1 stop28h 45m
Tue 10/1311:10 pm -
1 stop28h 05m
Deal found 9/29![Philippine Airlines logo]()
$884
This Gotogate deal was found by Cheapflights users on 9/29. 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.
Thu 10/87:20 am -
1 stop28h 45m
Thu 10/1511:10 pm -
1 stop38h 50m
Deal found 9/29![Philippine Airlines logo]()
$864
This SmartFares deal was found by Cheapflights users on 9/29. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/128:30 pm -
1 stop39h 35m
Fri 11/139:30 pm -
1 stop39h 35m
Deal found 9/29![Philippine Airlines logo]()
$859
This FlightHub deal was found by Cheapflights users on 9/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/128:30 pm -
1 stop39h 35m
Thu 11/129:30 pm -
1 stop39h 35m
Deal found 9/29![Philippine Airlines logo]()
$863
This SmartFares deal was found by Cheapflights users on 9/29. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/128:30 pm -
1 stop39h 35m
Mon 4/1211:55 pm -
1 stop38h 00m
Deal found 9/29![Philippine Airlines logo]()
$875
This Gotogate deal was found by Cheapflights users on 9/29. 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.
Wed 10/287:30 am -
1 stop28h 15m
Mon 11/29:30 pm -
1 stop39h 35m
Deal found 9/29![Philippine Airlines logo]()
$857
This Gotogate deal was found by Cheapflights users on 9/29. 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.
Fri 10/307:30 am -
1 stop28h 15m
Fri 11/69:30 pm -
1 stop39h 35m
Deal found 9/29![Philippine Airlines logo]()
$816
This Air Canada deal was found by Cheapflights users on 9/30. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/305:55 pm -
1 stop20h 02m
Thu 11/127:05 pm -
1 stop29h 05m
Deal found 9/30![Air Canada logo]()
$886
This United Airlines deal was found by Cheapflights users on 10/1. 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.
Thu 11/512:45 pm -
1 stop25h 12m
Sun 11/87:00 am -
1 stop16h 15m
Deal found 10/1![United Airlines logo]()
$978
This YBTour deal was found by Cheapflights users on 9/30. 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 YBTour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/128:00 pm -
Nonstop9h 55m
Sun 11/2212:40 pm -
Nonstop11h 55m
Deal found 9/30![Alaska Airlines logo]()
$714
This Cheapflightsfares deal was found by Cheapflights users on 9/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:30 am -
1 stop28h 15m
Thu 11/269:30 pm -
1 stop28h 40m
Deal found 9/29![Philippine Airlines logo]()
$804
This Gotogate deal was found by Cheapflights users on 9/30. 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 11/128:30 pm -
1 stop39h 15m
Sun 11/229:30 pm -
1 stop21h 30m
Deal found 9/30![Philippine Airlines logo]()
$858
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 October 3, 2026.
Search for one-way flight options from Seoul to Washington. Find affordable one-way fares based on user searches. Data last updated October 3, 2026.
This Booking.com deal was found by Cheapflights users on 9/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/49:20 pm -
2 stops27h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Hainan Airlines logo]()
$467
This Kiwi.com deal was found by Cheapflights users on 9/30. 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 12/29:20 pm -
2 stops27h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Hainan Airlines logo]()
$468
This Kiwi.com deal was found by Cheapflights users on 9/29. 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 11/259:20 pm -
2 stops27h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Hainan Airlines logo]()
$481
This Kiwi.com deal was found by Cheapflights users on 9/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/278:40 pm -
3 stops38h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Multiple Airlines logo]()
$489
This FlightHub deal was found by Cheapflights users on 10/2. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/149:30 pm -
2 stops28h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/2![Hainan Airlines logo]()
$490
This Kiwi.com deal was found by Cheapflights users on 9/30. 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.
Thu 11/267:35 am -
2 stops24h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Multiple Airlines logo]()
$499
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 October 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $714 (YBTour) |
One-way from | $467 (Booking.com) |
Popular in | June |
Cheapest in | November |
Average price | $831 |
Good round-trip deal | $1,081 or less |
Good one-way deal | $746 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 7,457,451 searches. Data last updated October 3, 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
Thu 3/4
12:30 pm-6:10 pm
1 stop22h 40m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$616
IncheonSeattle
ICN Incheon Intl - SEA Seattle/Tacoma Intl
ICNSEA
Incheon Intl
Wed 3/31
8:30 pm-7:35 pm
1 stop39h 05m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$644
IncheonSeattle
ICN Incheon Intl - SEA Seattle/Tacoma Intl
ICNSEA
Incheon Intl
Fri 10/30
6:45 pm-12:51 pm
Nonstop10h 06m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$849
Quickest round-trip
IncheonSeattle
ICN Incheon Intl - SEA Seattle/Tacoma Intl
ICNSEA
Incheon Intl
Tue 11/10
4:10 pm-9:05 am
Nonstop9h 55m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$849
IncheonSeattle
ICN Incheon Intl - SEA Seattle/Tacoma Intl
ICNSEA
Incheon Intl
Thu 11/26
8:00 pm-12:55 pm
Nonstop9h 55m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$849
IncheonSeattle
ICN Incheon Intl - SEA Seattle/Tacoma Intl
ICNSEA
Incheon Intl
Wed 3/31
7:00 pm-1:20 pm
Nonstop10h 20m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$849
IncheonSeattle
ICN Incheon Intl - SEA Seattle/Tacoma Intl
ICNSEA
Incheon Intl
Tue 11/3
4:10 pm-9:05 am
Nonstop9h 55m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$849
IncheonSeattle
ICN Incheon Intl - SEA Seattle/Tacoma Intl
ICNSEA
Incheon Intl
Tue 3/30
7:00 pm-1:20 pm
Nonstop10h 20m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$849
IncheonSeattle
ICN Incheon Intl - SEA Seattle/Tacoma Intl
ICNSEA
Incheon Intl
Wed 10/14
4:40 pm-10:40 am
Nonstop10h 00m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$849
IncheonSeattle
ICN Incheon Intl - SEA Seattle/Tacoma Intl
ICNSEA
Incheon Intl
Fri 12/4
12:45 pm-9:21 pm
3 stops25h 36m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$850
Showing 1-10 of 28 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-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 Seoul to Washington
SEL-USWA
ICN-SEA
ICN-GEG
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 $592). 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 October 3, 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 October 3, 2026.
The most flights from SEL to USWA are scheduled on a Friday (9 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).
How much does it cost to fly round-trip from Seoul to State of Washington?
Airfare is typical for this route at the moment.
Seoul to State of Washington flights typically cost between $347 and $881 in November.The cheapest round-trip price found within the last 5 days was $714 on Alaska Airlines (Nov 12-Nov 22).
How far ahead should I book a flight from Seoul to State of Washington?
Booking 59 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 October 3, 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
Entertainment
8.2
Overall
8.4
Boarding
8.5
Food
8.1
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Comfort
8.3
Crew
8.7
Entertainment
8.2
Overall
8.4
Boarding
8.5
Food
8.1
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Comfort
8.3
Crew
8.7
Entertainment
8.2
Overall
8.4
Boarding
8.5
Food
8.1
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Comfort
8.3
Crew
8.7
Entertainment
8.2
Overall
8.4
Boarding
8.5
Food
8.1
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Comfort
8.3
Crew
8.7
Entertainment
8.2
Overall
8.4
Boarding
8.5
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 Seoul 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.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Alternative routes for Seoul 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 Seoul to Washington by cabin class
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 October 3, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Seoul to Washington
Discover the top 4 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 7,457,451 searches. Data last updated October 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$464 | Average$754 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$510 | Average$935 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$524 | Average$677 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$618 | Average$773 | FlexibilityNo cancel fee | On-timeN/A |