$281+ Cheap flights from Washington to South Korea
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 11/30. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ICN
Dec 4 — Dec 111
Round-trip
1 adult, Economy
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Find cheap flights from Washington to South Korea 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
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Cheapest flights from Washington to South KoreaExplore the most affordable flight options available from Washington to South Korea. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 4, 2026.
Explore the most affordable flight options available from Washington to South Korea. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 4, 2026.
This ScholarTrip deal was found by Cheapflights users on 11/1. 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 ScholarTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1010:25 am -
1 stop21h 15m
Tue 11/247:35 pm -
1 stop30h 10m
Deal found 11/1![Cathay Pacific logo]()
$862
This Kiwi.com deal was found by Cheapflights users on 10/31. 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 12/77:20 am -
1 stop21h 00m
Mon 12/147:45 pm -
1 stop15h 28m
Deal found 10/31![Multiple Airlines logo]()
$864
This deal was found by Cheapflights users on 11/1. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1811:00 am -
Nonstop11h 55m
Sat 12/124:10 pm -
Nonstop9h 55m
Deal found 11/1![Korean Air logo]()
$866
This deal was found by Cheapflights users on 11/1. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1612:10 am -
Nonstop12h 10m
Sun 12/64:10 pm -
Nonstop9h 55m
Deal found 11/1![Korean Air logo]()
$868
This deal was found by Cheapflights users on 11/1. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1811:00 am -
Nonstop11h 55m
Sun 12/69:20 pm -
Nonstop9h 50m
Deal found 11/1![Korean Air logo]()
$870
This Air Canada deal was found by Cheapflights users on 11/1. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/98:40 am -
1 stop15h 30m
Mon 11/236:55 pm -
1 stop16h 27m
Deal found 11/1![Air Canada logo]()
$871
This Booking.com deal was found by Cheapflights users on 11/2. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/3010:25 am -
1 stop21h 15m
Mon 12/710:00 am -
1 stop39h 45m
Deal found 11/2![Cathay Pacific logo]()
$875
This FlightHub deal was found by Cheapflights users on 11/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1610:25 am -
1 stop21h 15m
Wed 12/21:55 am -
1 stop23h 50m
Deal found 11/1![Cathay Pacific logo]()
$877
This Gotogate deal was found by Cheapflights users on 11/3. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2310:25 am -
1 stop39h 10m
Sun 12/61:50 pm -
1 stop35h 55m
Deal found 11/3![Cathay Pacific logo]()
$878
This Kiwi.com deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” 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 12/58:46 am -
1 stop19h 34m
Mon 12/147:45 pm -
1 stop15h 28m
Deal found 11/4![Multiple Airlines logo]()
$880
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/28:46 am -
1 stop19h 34m
Mon 12/147:45 pm -
1 stop15h 28m
Deal found 11/3![Multiple Airlines logo]()
$881
This Cathay Pacific deal was found by Cheapflights users on 11/1. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/3010:25 am -
1 stop33h 45m
Thu 12/108:45 am -
1 stop17h 00m
Deal found 11/1![Cathay Pacific logo]()
$948
Best flights from Washington to South KoreaDiscover carefully curated flight deals from Washington to South Korea that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 4, 2026.
Discover carefully curated flight deals from Washington to South Korea that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 4, 2026.
This Cathay Pacific deal was found by Cheapflights users on 11/3. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/310:25 am -
1 stop33h 45m
Sun 3/71:55 pm -
1 stop35h 50m
Deal found 11/3![Cathay Pacific logo]()
$948
This Korean Air deal was found by Cheapflights users on 10/31. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/157:20 am -
1 stop17h 20m
Sun 11/224:10 pm -
Nonstop9h 55m
Deal found 10/31![Korean Air logo]()
$951
This Alaska Airlines deal was found by Cheapflights users on 10/30. 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.
Sun 11/159:01 am -
1 stop15h 34m
Thu 11/198:00 pm -
1 stop20h 59m
Deal found 10/30![Alaska Airlines logo]()
$1,001
This Delta deal was found by Cheapflights users on 11/1. 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.
Thu 11/2612:30 pm -
Nonstop12h 15m
Thu 1/146:45 pm -
Nonstop10h 06m
Deal found 11/1![Delta logo]()
$1,094
This Expedia deal was found by Cheapflights users on 11/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/256:13 pm -
2 stops26h 37m
Sat 2/271:50 pm -
2 stops25h 35m
Deal found 11/1![Multiple Airlines logo]()
$1,132
This China Airlines deal was found by Cheapflights users on 11/1. 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.
Tue 12/112:10 am -
1 stop17h 40m
Sat 12/127:50 pm -
1 stop15h 20m
Deal found 11/1![China Airlines logo]()
$1,169
This Air Canada deal was found by Cheapflights users on 10/30. 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.
Sun 11/1511:22 am -
2 stops38h 03m
Thu 11/196:55 pm -
2 stops43h 02m
Deal found 10/30![Air Canada logo]()
$1,293
This oojo deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/210:15 am -
1 stop52h 35m
Sun 4/117:40 am -
1 stop65h 05m
Deal found 11/4![Singapore Airlines logo]()
$1,314
This United Airlines deal was found by Cheapflights users on 10/30. 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 12/97:00 am -
1 stop16h 15m
Wed 12/3012:45 pm -
1 stop27h 33m
Deal found 10/30![United Airlines logo]()
$1,376
This Cathay Pacific deal was found by Cheapflights users on 11/1. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/3010:25 am -
1 stop27h 30m
Wed 12/97:40 am -
1 stop18h 05m
Deal found 11/1![Cathay Pacific logo]()
$948
This KAYAK deal was found by Cheapflights users on 10/31. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/2911:45 am -
1 stop26h 40m
Tue 4/137:30 am -
1 stop18h 35m
Deal found 10/31![Cathay Pacific logo]()
$992
This Korean Air deal was found by Cheapflights users on 11/2. 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.
Wed 2/177:20 am -
1 stop17h 20m
Wed 3/34:10 pm -
Nonstop9h 55m
Deal found 11/2![Korean Air logo]()
$1,101
This Delta deal was found by Cheapflights users on 11/2. 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.
Fri 11/2712:30 pm -
Nonstop12h 15m
Sat 12/126:45 pm -
Nonstop10h 11m
Deal found 11/2![Delta logo]()
$1,144
This Expedia deal was found by Cheapflights users on 11/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/125:47 pm -
2 stops27h 03m
Sat 3/201:50 pm -
2 stops24h 35m
Deal found 11/1![Multiple Airlines logo]()
$1,182
This Alaska Airlines deal was found by Cheapflights users on 11/1. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/254:16 pm -
2 stops56h 19m
Sat 2/278:00 pm -
1 stop15h 51m
Deal found 11/1![Alaska Airlines logo]()
$1,198
This Delta deal was found by Cheapflights users on 11/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/2112:50 pm -
Nonstop11h 55m
Wed 3/176:45 pm -
Nonstop10h 06m
Deal found 11/3![Delta logo]()
$1,144
This Cathay Pacific deal was found by Cheapflights users on 11/2. 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.
Sun 1/179:08 pm -
2 stops34h 32m
Fri 2/267:35 pm -
2 stops30h 16m
Deal found 11/2![Cathay Pacific logo]()
$1,097
This Korean Air deal was found by Cheapflights users on 10/31. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/75:51 pm -
1 stop17h 09m
Sat 2/139:20 pm -
Nonstop9h 50m
Deal found 10/31![Korean Air logo]()
$1,223
This Alaska Airlines deal was found by Cheapflights users on 10/31. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/24:06 pm -
1 stop32h 29m
Mon 3/18:00 pm -
2 stops43h 29m
Deal found 10/31![Alaska Airlines logo]()
$1,253
This United Airlines deal was found by Cheapflights users on 10/30. 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.
Sun 1/1712:40 pm -
2 stops24h 00m
Thu 1/2112:45 pm -
2 stops25h 24m
Deal found 10/30![United Airlines logo]()
$1,419
This Delta deal was found by Cheapflights users on 10/30. 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 3/141:45 pm -
Nonstop12h 00m
Mon 4/197:00 pm -
Nonstop10h 20m
Deal found 10/30![Delta logo]()
$1,216
This Korean Air deal was found by Cheapflights users on 10/31. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/147:20 am -
1 stop17h 20m
Sat 2/279:20 pm -
Nonstop9h 50m
Deal found 10/31![Korean Air logo]()
$1,223
This FlightHub deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” 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.
Fri 4/29:40 pm -
2 stops52h 20m
Sun 4/117:10 pm -
1 stop16h 20m
Deal found 11/4![Multiple Airlines logo]()
$1,348
This Cathay Pacific deal was found by Cheapflights users on 11/1. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/110:25 am -
1 stop33h 45m
Sat 12/127:40 am -
1 stop18h 05m
Deal found 11/1![Cathay Pacific logo]()
$1,123
This Alaska Airlines deal was found by Cheapflights users on 10/31. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/412:40 pm -
Nonstop11h 55m
Sat 12/268:00 pm -
Nonstop9h 55m
Deal found 10/31![Alaska Airlines logo]()
$1,257
This Mytrip deal was found by Cheapflights users on 11/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/611:45 am -
1 stop26h 40m
Sun 4/187:30 am -
2 stops27h 45m
Deal found 11/3![Multiple Airlines logo]()
$1,355
This Korean Air deal was found by Cheapflights users on 10/30. 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.
Sat 12/57:15 am -
1 stop17h 25m
Sun 1/174:10 pm -
Nonstop9h 55m
Deal found 10/30![Korean Air logo]()
$1,264
This Delta deal was found by Cheapflights users on 11/1. 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 1/255:00 am -
1 stop19h 45m
Sat 2/276:45 pm -
1 stop21h 09m
Deal found 11/1![Delta logo]()
$1,281
This Alaska Airlines deal was found by Cheapflights users on 11/1. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/412:40 pm -
1 stop15h 05m
Sat 12/1212:00 pm -
1 stop17h 55m
Deal found 11/1![Alaska Airlines logo]()
$1,316
This Korean Air deal was found by Cheapflights users on 11/1. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/297:20 am -
2 stops20h 25m
Fri 12/1112:00 pm -
1 stop14h 05m
Deal found 11/1![Korean Air logo]()
$1,270
Last-minute flights from Washington to South KoreaDiscover last-minute flight deals from Washington to South Korea. Data last updated November 4, 2026 and is based on user searches.
Discover last-minute flight deals from Washington to South Korea. Data last updated November 4, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 11/1. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/98:40 am -
1 stop15h 30m
Mon 11/236:55 pm -
1 stop16h 27m
Deal found 11/1![Air Canada logo]()
$871
This ScholarTrip deal was found by Cheapflights users on 11/1. 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 ScholarTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1010:25 am -
1 stop21h 15m
Tue 11/247:35 pm -
1 stop30h 10m
Deal found 11/1![Cathay Pacific logo]()
$862
This deal was found by Cheapflights users on 11/1. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1612:10 am -
Nonstop12h 10m
Sun 12/64:10 pm -
Nonstop9h 55m
Deal found 11/1![Korean Air logo]()
$868
This FlightHub deal was found by Cheapflights users on 11/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1610:25 am -
1 stop21h 15m
Wed 12/21:55 am -
1 stop23h 50m
Deal found 11/1![Cathay Pacific logo]()
$877
This deal was found by Cheapflights users on 11/1. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1811:00 am -
Nonstop11h 55m
Sat 12/124:10 pm -
Nonstop9h 55m
Deal found 11/1![Korean Air logo]()
$866
This deal was found by Cheapflights users on 11/1. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1811:00 am -
Nonstop11h 55m
Sun 12/69:20 pm -
Nonstop9h 50m
Deal found 11/1![Korean Air logo]()
$870
This Gotogate deal was found by Cheapflights users on 11/3. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2310:25 am -
1 stop39h 10m
Sun 12/61:50 pm -
1 stop35h 55m
Deal found 11/3![Cathay Pacific logo]()
$878
This Booking.com deal was found by Cheapflights users on 11/2. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/3010:25 am -
1 stop21h 15m
Mon 12/710:00 am -
1 stop39h 45m
Deal found 11/2![Cathay Pacific logo]()
$875
This Cathay Pacific deal was found by Cheapflights users on 11/1. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/3010:25 am -
1 stop27h 30m
Wed 12/97:40 am -
1 stop18h 05m
Deal found 11/1![Cathay Pacific logo]()
$948
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/28:46 am -
1 stop19h 34m
Mon 12/147:45 pm -
1 stop15h 28m
Deal found 11/3![Multiple Airlines logo]()
$881
This Kiwi.com deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” 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 12/58:46 am -
1 stop19h 34m
Mon 12/147:45 pm -
1 stop15h 28m
Deal found 11/4![Multiple Airlines logo]()
$880
This Kiwi.com deal was found by Cheapflights users on 10/31. 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 12/77:20 am -
1 stop21h 00m
Mon 12/147:45 pm -
1 stop15h 28m
Deal found 10/31![Multiple Airlines logo]()
$864
One-way flights from Washington to South KoreaSearch for one-way flight options from Washington to South Korea. Find affordable one-way fares based on user searches. Data last updated November 4, 2026.
Search for one-way flight options from Washington to South Korea. Find affordable one-way fares based on user searches. Data last updated November 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 11/307:00 am -
2 stops35h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Multiple Airlines logo]()
$281
This Kiwi.com deal was found by Cheapflights users on 11/1. 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.
Tue 1/127:00 am -
2 stops33h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Multiple Airlines logo]()
$294
This Kiwi.com deal was found by Cheapflights users on 10/31. 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.
Sun 1/107:00 am -
2 stops35h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/31![Multiple Airlines logo]()
$295
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 1/116:20 pm -
2 stops46h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Multiple Airlines logo]()
$313
This Kiwi.com deal was found by Cheapflights users on 11/1. 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.
Wed 1/207:00 am -
2 stops28h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Multiple Airlines logo]()
$378
This Booking.com deal was found by Cheapflights users on 11/1. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/3110:05 am -
2 stops41h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Hainan Airlines logo]()
$400
This Kiwi.com deal was found by Cheapflights users on 11/1. 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.
Tue 2/27:00 am -
3 stops26h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Multiple Airlines logo]()
$411
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/2310:00 am -
1 stop18h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Multiple Airlines logo]()
$414
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/219:08 pm -
2 stops44h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Multiple Airlines logo]()
$468
This Trip.com deal was found by Cheapflights users on 11/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/2110:25 am -
1 stop27h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Cathay Pacific logo]()
$496
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/77:20 am -
2 stops34h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Multiple Airlines logo]()
$527
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/310:25 am -
2 stops43h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Multiple Airlines logo]()
$536
Find flight deals from Washington to South Korea
Keep the following information in mind while searching for Washington to South Korea flight deals. Data was last updated November 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $854 (WhyPayMore) |
One-way from | $281 (Kiwi.com) |
Popular in | December |
Cheapest in | January |
Average price | $1,107 |
Good round-trip deal | $845 or less |
Good one-way deal | $460 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Washington to South Korea 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 November 4, 2026.
Use the filters below to find and compare flights from Washington to South Korea that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Tue 11/17
12:30 pm-5:45 pm
Nonstop12h 15m
Incheon Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$448
SeattleBusan
SEA Seattle/Tacoma Intl - PUS Busan Gimhae
SEAPUS
Seattle/Tacoma Intl
Thu 1/21
10:25 am-6:55 am
1 stop27h 30m
Busan Gimhae
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$496
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Wed 2/10
4:49 pm-12:45 pm
2 stops26h 56m
Incheon Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$535
SeattleBusan
SEA Seattle/Tacoma Intl - PUS Busan Gimhae
SEAPUS
Seattle/Tacoma Intl
Sat 11/21
3:50 pm-9:50 am
3 stops49h 00m
Busan Gimhae
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$549
SpokaneIncheon
GEG Spokane - ICN Incheon Intl
GEGICN
Spokane
Thu 11/26
6:00 am-1:50 pm
2 stops38h 50m
Incheon Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$556
SpokaneIncheon
GEG Spokane - ICN Incheon Intl
GEGICN
Spokane
Mon 11/30
7:36 pm-12:40 am
2 stops36h 04m
Incheon Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$567
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Tue 11/24
12:30 pm-5:45 pm
Nonstop12h 15m
Incheon Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$578
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Mon 2/15
12:50 pm-5:45 pm
Nonstop11h 55m
Incheon Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$578
SpokaneIncheon
GEG Spokane - ICN Incheon Intl
GEGICN
Spokane
Thu 11/26
7:00 am-5:45 pm
1 stop17h 45m
Incheon Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$582
SpokaneIncheon
GEG Spokane - ICN Incheon Intl
GEGICN
Spokane
Fri 3/19
5:47 pm-9:25 pm
2 stops35h 38m
Incheon Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$597
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Washington to South Korea
Have a flexible travel schedule? Discover the best time to fly to South Korea from Washington with our price prediction graph.
SEA-PUS
SEA-ICN
GEG-ICN
SEA-CJU
PSC-ICN
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 Washington to South Korea
USWA-KR0
SEA-PUS
SEA-ICN
GEG-ICN
SEA-CJU
What is the cheapest month to book a flight from State of Washington to South Korea?
Currently, April is the cheapest month in which you can book a flight from State of Washington to South Korea (average of $343). Flying from State of Washington to South Korea in December is currently the most expensive (average of $1,424). 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 WA to KR?
Find hourly flight availability from Washington to South Korea. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 4, 2026.
It’s optimal to fly from State of Washington to South Korea at noon. By choosing this option you can save up to 78% on the cost of your flight, compared to a flight in the afternoon.
Weekly flight availability from State of Washington to South Korea
Explore weekly flight availability from Washington to South Korea. 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 November 4, 2026.
The most flights from USWA to KR0 are scheduled on a Monday (6 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (4 on average).
How far ahead should I book a flight from State of Washington to South Korea?
The price you pay for your flight from State of Washington to South Korea may vary depending on when you book. For the best chance of a lower fare, look to book 68 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Related info for your journey
Find useful and relevant information for your journey from Washington to South Korea. 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 Washington to South Korea
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to South Korea by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Washington to South Korea by cabin class
Find flights from Washington to South Korea, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Washington and South Korea flights
Browse other Washington and South Korea flight options. Last updated on November 4, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from South Korea
Find the right flight back to Washington after your stay in South Korea
Washington to South Korea flights
Consider these flights traveling from Washington to South Korea.
Fly to South Korea regions
Consider these flights traveling to South Korea regions.
Top 8 airlines flying from Washington to South Korea
Discover the top 8 airlines that operate flights from Washington to South Korea. 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 November 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$335 | Average$631 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$523 | Average$787 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$749 | Average$858 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$792 | Average$858 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$796 | Average$902 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$852 | Average$1,111 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$868 | Average$1,341 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$950 | Average$1,139 | FlexibilityNo cancel fee | On-time74% |