$365+ Cheap flights from Washington to South Korea
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 8/16. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ICN
Sep 5 — Sep 121
Round-trip
1 adult, Economy
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Find cheap flights from Washington to South Korea with Cheapflights
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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 August 6, 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 August 6, 2026.
This Gotogate deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” 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 9/22:30 pm -
1 stop36h 15m
Sat 9/127:35 pm -
2 stops17h 15m
Deal found 8/5![Multiple Airlines logo]()
$879
This Ovago deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” 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.
Sat 10/1710:30 am -
1 stop16h 15m
Sun 10/258:45 pm -
1 stop33h 35m
Deal found 8/5![WestJet logo]()
$887
This Kiwi.com deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2910:30 am -
1 stop16h 15m
Tue 9/151:30 pm -
2 stops44h 40m
Deal found 8/3![Multiple Airlines logo]()
$888
This Kiwi.com deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2810:30 am -
1 stop16h 15m
Tue 9/151:30 pm -
2 stops44h 40m
Deal found 8/3![Multiple Airlines logo]()
$889
This Kiwi.com deal was found by Cheapflights users on 8/4. 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.
Mon 9/218:15 pm -
3 stops41h 15m
Thu 10/229:20 pm -
Nonstop9h 55m
Deal found 8/4![Multiple Airlines logo]()
$890
This Kiwi.com deal was found by Cheapflights users on 8/4. 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.
Wed 9/237:25 pm -
3 stops42h 05m
Tue 10/209:20 pm -
Nonstop9h 55m
Deal found 8/4![Multiple Airlines logo]()
$891
This WestJet deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:35 pm -
1 stop31h 10m
Sun 9/138:45 pm -
1 stop28h 55m
Deal found 8/3![WestJet logo]()
$892
This WestJet deal was found by Cheapflights users on 8/4. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2710:30 am -
1 stop16h 15m
Sun 9/138:45 pm -
1 stop28h 55m
Deal found 8/4![WestJet logo]()
$893
This Gotogate deal was found by Cheapflights users on 8/4. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/112:25 pm -
1 stop18h 00m
Thu 10/19:20 pm -
Nonstop9h 55m
Deal found 8/4![Multiple Airlines logo]()
$894
This Kiwi.com deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2910:30 am -
1 stop16h 15m
Wed 9/167:15 pm -
2 stops30h 27m
Deal found 8/3![Multiple Airlines logo]()
$895
This Kiwi.com deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2810:30 am -
1 stop16h 15m
Wed 9/167:15 pm -
2 stops30h 27m
Deal found 8/3![Multiple Airlines logo]()
$896
This Kiwi.com deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1610:37 am -
1 stop19h 03m
Wed 9/237:15 pm -
1 stop17h 35m
Deal found 8/6![Multiple Airlines logo]()
$905
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 August 6, 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 August 6, 2026.
This Cathay Pacific deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/310:50 am -
1 stop20h 50m
Mon 11/91:55 am -
1 stop24h 15m
Deal found 8/3![Cathay Pacific logo]()
$944
This STARLUX Airlines deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure STARLUX Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/91:15 am -
1 stop24h 40m
Mon 9/146:55 pm -
1 stop37h 15m
Deal found 8/1![STARLUX Airlines logo]()
$991
This EVA Air deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” 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.
Tue 11/1712:10 am -
1 stop24h 30m
Wed 11/256:55 pm -
1 stop16h 15m
Deal found 8/5![EVA Air logo]()
$1,055
This United Airlines deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/281:16 pm -
1 stop23h 04m
Fri 9/44:50 pm -
1 stop22h 36m
Deal found 8/1![United Airlines logo]()
$1,057
This Gotogate deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” 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 8/2412:25 pm -
1 stop33h 10m
Fri 9/47:00 am -
1 stop22h 40m
Deal found 8/5![Multiple Airlines logo]()
$1,064
This Delta deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/145:30 am -
1 stop19h 20m
Thu 10/296:45 pm -
1 stop14h 19m
Deal found 8/1![Delta logo]()
$1,107
This Turkish Airlines deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/177:05 pm -
1 stop30h 15m
Thu 12/1712:05 am -
1 stop34h 05m
Deal found 8/5![Turkish Airlines logo]()
$1,181
This oojo deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” 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.
Sat 9/195:29 pm -
2 stops25h 46m
Sat 9/268:35 pm -
2 stops19h 18m
Deal found 8/6![China Airlines logo]()
$1,191
This Cheapflightsfares deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/277:18 am -
2 stops22h 47m
Tue 11/108:00 am -
2 stops25h 34m
Deal found 8/1![Japan Airlines logo]()
$1,321
This Asiana Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2612:10 am -
Nonstop12h 10m
Sun 11/19:00 pm -
Nonstop9h 55m
Deal found 8/3![Asiana Airlines logo]()
$1,337
This Korean Air deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” 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 9/231:00 pm -
1 stop14h 55m
Sun 9/277:55 am -
1 stop18h 45m
Deal found 8/5![Korean Air logo]()
$1,340
This Qatar Airways deal was found by Cheapflights users on 8/4. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/257:59 pm -
2 stops52h 16m
Wed 12/2312:20 am -
2 stops40h 39m
Deal found 8/4![Qatar Airways logo]()
$1,422
This Booking.com deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:06 am -
1 stop19h 24m
Sat 9/197:35 pm -
1 stop13h 24m
Deal found 8/2![Alaska Airlines logo]()
$1,460
This Expedia deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/193:45 pm -
1 stop26h 35m
Thu 1/287:45 am -
1 stop22h 35m
Deal found 8/1![ANA logo]()
$1,554
This STARLUX Airlines deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure STARLUX Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/111:45 pm -
1 stop18h 45m
Thu 11/56:55 pm -
1 stop37h 10m
Deal found 8/5![STARLUX Airlines logo]()
$991
This Trip.com deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1412:25 pm -
1 stop26h 05m
Mon 9/217:30 am -
1 stop18h 35m
Deal found 8/3![Cathay Pacific logo]()
$1,040
This United Airlines deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/197:11 am -
1 stop15h 49m
Wed 8/2611:30 am -
3 stops25h 45m
Deal found 8/2![United Airlines logo]()
$1,062
This Kiwi.com deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” 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 9/152:02 pm -
1 stop39h 38m
Sun 9/207:35 pm -
2 stops33h 47m
Deal found 8/6![Multiple Airlines logo]()
$1,082
This EVA Air deal was found by Cheapflights users on 8/4. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/281:10 am -
1 stop19h 40m
Fri 11/131:50 pm -
1 stop21h 20m
Deal found 8/4![EVA Air logo]()
$1,096
This Delta deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/55:30 am -
1 stop19h 20m
Mon 10/127:00 pm -
1 stop17h 00m
Deal found 8/3![Delta logo]()
$1,107
This Cathay Pacific deal was found by Cheapflights users on 8/4. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2411:45 am -
1 stop20h 40m
Sun 10/188:05 pm -
2 stops32h 51m
Deal found 8/4![Cathay Pacific logo]()
$1,062
This EVA Air deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/412:10 am -
1 stop19h 40m
Sat 11/71:50 pm -
1 stop20h 40m
Deal found 8/2![EVA Air logo]()
$1,096
This Gotogate deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” 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 11/1912:40 pm -
1 stop15h 05m
Mon 11/2311:50 am -
1 stop23h 20m
Deal found 8/5![Multiple Airlines logo]()
$1,100
This United Airlines deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/57:00 am -
1 stop16h 00m
Mon 10/124:50 pm -
1 stop22h 07m
Deal found 8/5![United Airlines logo]()
$1,107
This Delta deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/155:10 am -
1 stop19h 40m
Tue 9/227:00 pm -
1 stop18h 15m
Deal found 8/2![Delta logo]()
$1,107
This Cathay Pacific deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/129:53 am -
2 stops41h 12m
Tue 11/101:45 pm -
1 stop36h 25m
Deal found 8/2![Cathay Pacific logo]()
$1,062
This United Airlines deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/275:36 am -
1 stop18h 39m
Tue 11/106:00 pm -
1 stop17h 20m
Deal found 8/1![United Airlines logo]()
$1,107
This Delta deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/85:10 am -
1 stop19h 40m
Tue 11/106:45 pm -
1 stop13h 11m
Deal found 8/2![Delta logo]()
$1,107
This Mytrip deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” 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.
Fri 9/41:15 am -
1 stop24h 15m
Fri 9/118:30 pm -
2 stops35h 40m
Deal found 8/6![Multiple Airlines logo]()
$1,118
This Japan Airlines deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/147:18 am -
2 stops21h 57m
Thu 10/2912:05 pm -
2 stops20h 39m
Deal found 8/5![Japan Airlines logo]()
$1,377
Last-minute flights from Washington to South KoreaDiscover last-minute flight deals from Washington to South Korea. Data last updated August 6, 2026 and is based on user searches.
Discover last-minute flight deals from Washington to South Korea. Data last updated August 6, 2026 and is based on user searches.
This WestJet deal was found by Cheapflights users on 8/4. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2710:30 am -
1 stop16h 15m
Sun 9/138:45 pm -
1 stop28h 55m
Deal found 8/4![WestJet logo]()
$893
This Kiwi.com deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2810:30 am -
1 stop16h 15m
Tue 9/151:30 pm -
2 stops44h 40m
Deal found 8/3![Multiple Airlines logo]()
$889
This WestJet deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:35 pm -
1 stop31h 10m
Sun 9/138:45 pm -
1 stop28h 55m
Deal found 8/3![WestJet logo]()
$892
This Kiwi.com deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2810:30 am -
1 stop16h 15m
Wed 9/167:15 pm -
2 stops30h 27m
Deal found 8/3![Multiple Airlines logo]()
$896
This Kiwi.com deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2910:30 am -
1 stop16h 15m
Tue 9/151:30 pm -
2 stops44h 40m
Deal found 8/3![Multiple Airlines logo]()
$888
This Kiwi.com deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2910:30 am -
1 stop16h 15m
Wed 9/167:15 pm -
2 stops30h 27m
Deal found 8/3![Multiple Airlines logo]()
$895
This Gotogate deal was found by Cheapflights users on 8/4. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/112:25 pm -
1 stop18h 00m
Thu 10/19:20 pm -
Nonstop9h 55m
Deal found 8/4![Multiple Airlines logo]()
$894
This Gotogate deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” 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 9/22:30 pm -
1 stop36h 15m
Sat 9/127:35 pm -
2 stops17h 15m
Deal found 8/5![Multiple Airlines logo]()
$879
This Kiwi.com deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1610:37 am -
1 stop19h 03m
Wed 9/237:15 pm -
1 stop17h 35m
Deal found 8/6![Multiple Airlines logo]()
$905
This Kiwi.com deal was found by Cheapflights users on 8/4. 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.
Mon 9/218:15 pm -
3 stops41h 15m
Thu 10/229:20 pm -
Nonstop9h 55m
Deal found 8/4![Multiple Airlines logo]()
$890
This Kiwi.com deal was found by Cheapflights users on 8/4. 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.
Wed 9/237:25 pm -
3 stops42h 05m
Tue 10/209:20 pm -
Nonstop9h 55m
Deal found 8/4![Multiple Airlines logo]()
$891
This Booking.com deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2911:45 am -
1 stop18h 40m
Fri 10/309:00 pm -
Nonstop9h 55m
Deal found 8/3![Multiple Airlines logo]()
$899
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 August 6, 2026.
Search for one-way flight options from Washington to South Korea. Find affordable one-way fares based on user searches. Data last updated August 6, 2026.
This Super.com deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/167:35 pm -
1 stop31h 10m
Deal found 8/2![WestJet logo]()
$365
This Super.com deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/47:35 pm -
1 stop31h 10m
Deal found 8/6![WestJet logo]()
$366
This oojo deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/3010:30 am -
1 stop16h 15m
Deal found 8/1![WestJet logo]()
$371
This Trip.com deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” 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.
Wed 9/22:30 pm -
1 stop36h 15m
Deal found 8/5![WestJet logo]()
$374
This Mytrip deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2610:30 am -
1 stop16h 15m
Deal found 8/3![WestJet logo]()
$380
This Kiwi.com deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” 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 8/2910:30 am -
1 stop16h 15m
Deal found 8/5![WestJet logo]()
$383
This Mytrip deal was found by Cheapflights users on 8/4. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/127:35 pm -
1 stop31h 10m
Deal found 8/4![WestJet logo]()
$387
This Mytrip deal was found by Cheapflights users on 8/4. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/137:00 am -
1 stop19h 45m
Deal found 8/4![WestJet logo]()
$388
This Kiwi.com deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:00 am -
1 stop19h 45m
Deal found 8/3![WestJet logo]()
$390
This Kiwi.com deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” 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 9/31:47 pm -
2 stops39h 53m
Deal found 8/5![Multiple Airlines logo]()
$452
This Kiwi.com deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” 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 9/292:40 pm -
1 stop39h 00m
Deal found 8/5![Multiple Airlines logo]()
$455
This Kiwi.com deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3010:37 am -
1 stop19h 03m
Deal found 8/2![Multiple Airlines logo]()
$462
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 August 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $879 (Gotogate) |
One-way from | $365 (Super.com) |
Popular in | June |
Cheapest in | November |
Average price | $887 |
Good round-trip deal | $856 or less |
Good one-way deal | $443 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 2,558,603 searches. Data last updated August 6, 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 11/3
10:50 am-12:40 am
1 stop20h 50m
Incheon Intl
Mon 11/9
1:55 am-9:10 am
1 stop24h 15m
$944
SeattleBusan
SEA Seattle/Tacoma Intl - PUS Busan Gimhae
SEAPUS
Seattle/Tacoma Intl
Wed 9/9
1:15 am-5:55 pm
1 stop24h 40m
Busan Gimhae
Mon 9/14
6:55 pm-4:10 pm
1 stop37h 15m
$991
SeattleBusan
SEA Seattle/Tacoma Intl - PUS Busan Gimhae
SEAPUS
Seattle/Tacoma Intl
Sun 11/1
11:45 pm-11:30 am
1 stop18h 45m
Busan Gimhae
Thu 11/5
6:55 pm-3:05 pm
1 stop37h 10m
$991
SeattleJeju City
SEA Seattle/Tacoma Intl - CJU Jeju City
SEACJU
Seattle/Tacoma Intl
Mon 9/14
12:25 pm-6:30 am
1 stop26h 05m
Jeju City
Mon 9/21
7:30 am-10:05 am
1 stop18h 35m
$1,040
SeattleBusan
SEA Seattle/Tacoma Intl - PUS Busan Gimhae
SEAPUS
Seattle/Tacoma Intl
Tue 11/17
12:10 am-5:40 pm
1 stop24h 30m
Busan Gimhae
Wed 11/25
6:55 pm-6:10 pm
1 stop16h 15m
$1,055
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Fri 8/28
1:16 pm-4:20 am
1 stop23h 04m
Incheon Intl
Fri 9/4
4:50 pm-11:26 pm
1 stop22h 36m
$1,057
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Wed 8/19
7:11 am-3:00 pm
1 stop15h 49m
Incheon Intl
Wed 8/26
11:30 am-9:15 pm
3 stops25h 45m
$1,062
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Thu 9/24
11:45 am-12:25 am
1 stop20h 40m
Incheon Intl
Sun 10/18
8:05 pm-12:56 pm
2 stops32h 51m
$1,062
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Mon 10/12
9:53 am-7:05 pm
2 stops41h 12m
Incheon Intl
Tue 11/10
1:45 pm-9:10 am
1 stop36h 25m
$1,062
SeattleBusan
SEA Seattle/Tacoma Intl - PUS Busan Gimhae
SEAPUS
Seattle/Tacoma Intl
Mon 8/24
12:25 pm-1:35 pm
1 stop33h 10m
Busan Gimhae
Fri 9/4
7:00 am-1:40 pm
1 stop22h 40m
$1,064
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-ICN
SEA-PUS
PDX-ICN
PSC-ICN
PDX-GMP
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-ICN
SEA-PUS
PDX-ICN
PSC-ICN
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 $344). Flying from State of Washington to South Korea in December is currently the most expensive (average of $1,347). 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 August 6, 2026.
It’s optimal to fly from State of Washington to South Korea at noon. By choosing this option you can save up to 43% 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 August 6, 2026.
The most flights from USWA to KR0 are scheduled on a Wednesday (9 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (5 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
Toggle through the tabs below to find thousands of 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 August 6, 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 7 airlines flying from Washington to South Korea
Discover the top 7 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 2,558,603 searches. Data last updated August 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$160 | Average$718 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$335 | Average$641 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$523 | Average$681 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$762 | Average$878 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$783 | Average$877 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$829 | Average$1,491 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$843 | Average$990 | FlexibilityNo cancel fee | On-time81% |