$342+ 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 11/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ICN
Oct 22 — Oct 291
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 September 22, 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 September 22, 2026.
This Super.com deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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.
Mon 11/1612:10 am -
1 stop26h 05m
Tue 11/2412:30 pm -
1 stop22h 40m
Deal found 9/17![China Airlines logo]()
$896
This Cathay Pacific deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/111:45 am -
1 stop20h 40m
Thu 10/156:40 am -
1 stop19h 25m
Deal found 9/17![Cathay Pacific logo]()
$899
This Cathay Pacific deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” 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 9/1711:45 am -
1 stop18h 40m
Mon 10/51:40 pm -
1 stop36h 25m
Deal found 9/16![Cathay Pacific logo]()
$900
This Kiwi.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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 11/87:04 am -
1 stop21h 16m
Sun 11/227:45 pm -
1 stop30h 45m
Deal found 9/18![Multiple Airlines logo]()
$900
This oojo deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/259:36 pm -
2 stops35h 04m
Mon 11/2310:00 am -
1 stop39h 45m
Deal found 9/17![Multiple Airlines logo]()
$901
This eDestinos deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/218:41 am -
2 stops23h 44m
Mon 9/288:00 am -
2 stops24h 27m
Deal found 9/17![Cathay Pacific logo]()
$902
This oojo deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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.
Mon 9/217:24 pm -
2 stops25h 16m
Wed 9/301:40 pm -
1 stop36h 25m
Deal found 9/17![Multiple Airlines logo]()
$903
This oojo deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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.
Mon 9/2111:45 am -
1 stop34h 20m
Mon 9/288:05 pm -
2 stops28h 47m
Deal found 9/17![Multiple Airlines logo]()
$907
This KAYAK deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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.
Thu 10/14:59 pm -
2 stops29h 06m
Sun 10/251:55 am -
1 stop23h 50m
Deal found 9/18![Multiple Airlines logo]()
$908
This Cathay Pacific deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/1211:45 am -
1 stop18h 40m
Fri 11/61:55 am -
1 stop23h 50m
Deal found 9/17![Cathay Pacific logo]()
$909
This Expedia deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2212:10 am -
1 stop26h 05m
Mon 11/308:15 pm -
1 stop14h 55m
Deal found 9/17![China Airlines logo]()
$910
This Cathay Pacific deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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 9/2311:45 am -
1 stop32h 55m
Fri 11/610:00 am -
1 stop39h 45m
Deal found 9/18![Cathay Pacific logo]()
$911
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 September 22, 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 September 22, 2026.
This China Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/191:15 am -
1 stop25h 45m
Thu 10/228:00 pm -
1 stop15h 15m
Deal found 9/17![China Airlines logo]()
$918
This Alaska Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” 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 2/12:46 pm -
2 stops57h 49m
Sun 2/288:00 pm -
2 stops30h 46m
Deal found 9/21![Alaska Airlines logo]()
$996
This STARLUX Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure STARLUX Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1011:45 pm -
1 stop25h 10m
Tue 11/1712:30 pm -
1 stop19h 35m
Deal found 9/17![STARLUX Airlines logo]()
$1,073
This SmartFares deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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.
Sun 11/12:04 pm -
2 stops41h 36m
Sun 11/810:00 am -
2 stops54h 45m
Deal found 9/17![Multiple Airlines logo]()
$1,077
This EVA Air deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” 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.
Sun 3/141:10 am -
1 stop24h 50m
Sat 3/271:50 pm -
1 stop21h 30m
Deal found 9/21![EVA Air logo]()
$1,113
This Cathay Pacific deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” 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.
Fri 11/209:37 pm -
2 stops46h 08m
Fri 11/271:55 am -
2 stops29h 47m
Deal found 9/19![Cathay Pacific logo]()
$1,176
This Qatar Airways deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” 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 11/48:47 am -
2 stops32h 43m
Sun 11/2212:20 am -
2 stops39h 29m
Deal found 9/19![Qatar Airways logo]()
$1,177
This Delta deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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 1/1812:40 pm -
Nonstop12h 05m
Fri 2/56:45 pm -
Nonstop10h 05m
Deal found 9/18![Delta logo]()
$1,193
This United Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” 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 11/57:00 am -
1 stop16h 15m
Thu 11/126:00 pm -
1 stop19h 57m
Deal found 9/21![United Airlines logo]()
$1,280
This Korean Air deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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 10/182:30 pm -
2 stops37h 25m
Thu 10/227:55 am -
1 stop21h 39m
Deal found 9/20![Korean Air logo]()
$1,322
This Cheapflightsfares deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 11/1012:05 pm -
2 stops21h 29m
Deal found 9/17![Japan Airlines logo]()
$1,385
This Gotogate deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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.
Sun 11/812:10 am -
1 stop25h 40m
Mon 5/2412:15 pm -
1 stop23h 00m
Deal found 9/20![China Airlines logo]()
$992
This KAYAK deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/87:10 am -
2 stops35h 00m
Sat 11/1412:20 pm -
2 stops23h 11m
Deal found 9/17![ANA logo]()
$2,001
This Alaska Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/175:48 pm -
2 stops31h 42m
Thu 10/227:35 pm -
2 stops19h 39m
Deal found 9/19![Alaska Airlines logo]()
$1,076
This oojo deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” 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.
Wed 10/216:00 pm -
2 stops38h 25m
Wed 11/117:35 pm -
2 stops34h 37m
Deal found 9/19![Multiple Airlines logo]()
$1,082
This EVA Air deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” 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.
Mon 3/151:10 am -
1 stop26h 05m
Fri 3/261:50 pm -
1 stop21h 30m
Deal found 9/21![EVA Air logo]()
$1,113
This Gotogate deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1411:45 pm -
1 stop18h 45m
Sat 11/216:55 pm -
1 stop37h 10m
Deal found 9/22![STARLUX Airlines logo]()
$1,124
This Delta deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” 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 11/511:00 am -
Nonstop11h 55m
Tue 11/104:10 pm -
Nonstop9h 55m
Deal found 9/21![Delta logo]()
$1,193
This Kiwi.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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 11/21:08 pm -
1 stop23h 02m
Mon 11/99:00 pm -
2 stops18h 51m
Deal found 9/18![Multiple Airlines logo]()
$1,125
This Cathay Pacific deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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.
Fri 2/122:30 pm -
2 stops29h 15m
Sat 2/203:00 pm -
2 stops22h 31m
Deal found 9/18![Cathay Pacific logo]()
$1,270
This United Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” 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 10/211:35 pm -
1 stop22h 45m
Wed 11/1112:45 pm -
2 stops25h 13m
Deal found 9/19![United Airlines logo]()
$1,284
This STARLUX Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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
Sun 11/86:55 pm -
1 stop37h 10m
Deal found 9/17![STARLUX Airlines logo]()
$1,173
This Gotogate deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/171:15 am -
1 stop18h 00m
Sun 10/2511:50 am -
1 stop23h 20m
Deal found 9/20![China Airlines logo]()
$1,174
This Delta deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” 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 10/121:00 pm -
Nonstop11h 50m
Sat 10/177:00 pm -
Nonstop10h 14m
Deal found 9/21![Delta logo]()
$1,193
This oojo deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” 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.
Thu 11/57:08 am -
2 stops36h 37m
Thu 11/1210:00 am -
2 stops29h 23m
Deal found 9/21![Multiple Airlines logo]()
$1,130
This Alaska Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/45:11 am -
1 stop19h 24m
Mon 2/88:00 pm -
1 stop20h 59m
Deal found 9/19![Alaska Airlines logo]()
$1,268
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 11/512:30 pm -
Nonstop12h 15m
Thu 11/126:45 pm -
Nonstop10h 06m
Deal found 9/17![Delta logo]()
$1,193
This Cheapflightsfares deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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.
Wed 10/147:18 am -
2 stops21h 57m
Thu 10/2912:05 pm -
2 stops20h 39m
Deal found 9/17![Japan Airlines logo]()
$1,462
This United Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” 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 3/87:30 am -
1 stop15h 45m
Sat 3/206:00 pm -
1 stop22h 54m
Deal found 9/21![United Airlines logo]()
$1,330
This Booking.com deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” 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 11/33:48 pm -
2 stops33h 07m
Tue 11/1012:30 pm -
1 stop19h 35m
Deal found 9/19![Multiple Airlines logo]()
$1,137
Last-minute flights from Washington to South KoreaDiscover last-minute flight deals from Washington to South Korea. Data last updated September 22, 2026 and is based on user searches.
Discover last-minute flight deals from Washington to South Korea. Data last updated September 22, 2026 and is based on user searches.
This eDestinos deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/218:41 am -
2 stops23h 44m
Mon 9/288:00 am -
2 stops24h 27m
Deal found 9/17![Cathay Pacific logo]()
$902
This oojo deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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.
Mon 9/217:24 pm -
2 stops25h 16m
Wed 9/301:40 pm -
1 stop36h 25m
Deal found 9/17![Multiple Airlines logo]()
$903
This oojo deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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.
Mon 9/2111:45 am -
1 stop34h 20m
Mon 9/288:05 pm -
2 stops28h 47m
Deal found 9/17![Multiple Airlines logo]()
$907
This Kiwi.com deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 9/2111:45 am -
1 stop18h 40m
Sun 10/41:55 am -
2 stops30h 31m
Deal found 9/17![Cathay Pacific logo]()
$913
This Cathay Pacific deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” 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 9/2211:45 am -
1 stop20h 40m
Sat 10/38:00 am -
1 stop18h 05m
Deal found 9/16![Cathay Pacific logo]()
$912
This Cathay Pacific deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” 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 9/2311:45 am -
1 stop18h 40m
Mon 10/51:40 pm -
1 stop36h 25m
Deal found 9/16![Cathay Pacific logo]()
$900
This Cathay Pacific deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 9/2311:45 am -
1 stop18h 40m
Fri 10/21:55 am -
1 stop24h 10m
Deal found 9/17![Cathay Pacific logo]()
$911
This Cathay Pacific deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/111:45 am -
1 stop20h 40m
Thu 10/156:40 am -
1 stop19h 25m
Deal found 9/17![Cathay Pacific logo]()
$899
This KAYAK deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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.
Thu 10/14:59 pm -
2 stops29h 06m
Sun 10/251:55 am -
1 stop23h 50m
Deal found 9/18![Multiple Airlines logo]()
$908
This Cathay Pacific deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/1211:45 am -
1 stop18h 40m
Fri 11/61:55 am -
1 stop23h 50m
Deal found 9/17![Cathay Pacific logo]()
$909
This oojo deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/259:36 pm -
2 stops35h 04m
Mon 11/2310:00 am -
1 stop39h 45m
Deal found 9/17![Multiple Airlines logo]()
$901
This FlightHub deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” 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 10/2811:25 am -
1 stop34h 25m
Sun 11/83:00 pm -
2 stops33h 07m
Deal found 9/19![Cathay Pacific logo]()
$914
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 September 22, 2026.
Search for one-way flight options from Washington to South Korea. Find affordable one-way fares based on user searches. Data last updated September 22, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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 11/38:09 pm -
1 stop40h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Multiple Airlines logo]()
$342
This Kiwi.com deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” 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 11/47:04 am -
1 stop21h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Multiple Airlines logo]()
$356
This Kiwi.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” 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 11/48:54 am -
1 stop19h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$372
This Kiwi.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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 11/144:27 pm -
2 stops35h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Multiple Airlines logo]()
$376
This Kiwi.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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 11/77:33 pm -
1 stop32h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Multiple Airlines logo]()
$377
This Kiwi.com deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/314:27 pm -
2 stops36h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Multiple Airlines logo]()
$378
This Kiwi.com deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 11/67:04 am -
1 stop21h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Multiple Airlines logo]()
$378
This Kiwi.com deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:35 pm -
1 stop31h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![WestJet logo]()
$387
This Kiwi.com deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/207:35 pm -
1 stop31h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![WestJet logo]()
$399
This Kiwi.com deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” 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 11/17:04 am -
1 stop21h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Multiple Airlines logo]()
$405
This Kiwi.com deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” 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 11/55:30 pm -
1 stop34h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Multiple Airlines logo]()
$416
This Kiwi.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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 10/2110:48 am -
1 stop18h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Multiple Airlines logo]()
$430
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 September 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $896 (Super.com) |
One-way from | $342 (Kiwi.com) |
Popular in | December |
Cheapest in | January |
Average price | $968 |
Good round-trip deal | $798 or less |
Good one-way deal | $428 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 September 22, 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
PortlandIncheon
PDX Portland - ICN Incheon Intl
PDXICN
Portland
Wed 11/4
7:04 am-9:20 pm
1 stop21h 16m
Incheon Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$359
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Tue 3/2
9:40 pm-12:40 am
2 stops34h 00m
Incheon Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$462
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Tue 10/13
1:15 am-7:05 pm
1 stop25h 50m
Incheon Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$497
SeattleBusan
SEA Seattle/Tacoma Intl - PUS Busan Gimhae
SEAPUS
Seattle/Tacoma Intl
Sat 11/28
8:40 am-6:05 am
3 stops52h 25m
Busan Gimhae
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$507
PortlandIncheon
PDX Portland - ICN Incheon Intl
PDXICN
Portland
Fri 11/6
11:54 am-6:45 pm
2 stops37h 51m
Incheon Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$510
PortlandIncheon
PDX Portland - ICN Incheon Intl
PDXICN
Portland
Mon 11/2
12:31 pm-4:20 pm
2 stops58h 49m
Incheon Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$514
SeattleBusan
SEA Seattle/Tacoma Intl - PUS Busan Gimhae
SEAPUS
Seattle/Tacoma Intl
Sat 11/28
12:10 am-10:50 am
1 stop17h 40m
Busan Gimhae
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$515
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Sat 9/26
5:59 pm-2:05 pm
2 stops28h 06m
Incheon Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$520
PortlandIncheon
PDX Portland - ICN Incheon Intl
PDXICN
Portland
Sun 9/27
7:09 am-7:05 pm
2 stops43h 56m
Incheon Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$538
PortlandIncheon
PDX Portland - ICN Incheon Intl
PDXICN
Portland
Fri 3/12
10:30 am-9:20 pm
1 stop17h 50m
Incheon Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$543
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.
PDX-ICN
SEA-ICN
PDX-PUS
SEA-GMP
SEA-PUS
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
PDX-ICN
SEA-ICN
PDX-PUS
SEA-GMP
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 $1,387). 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 September 22, 2026.
It’s optimal to fly from State of Washington to South Korea at noon. By choosing this option you can save up to 77% 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 September 22, 2026.
The most flights from USWA to KR0 are scheduled on a Monday (9 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
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 September 22, 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 7,457,451 searches. Data last updated September 22, 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$686 | Average$878 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$788 | Average$890 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$829 | Average$1,514 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$848 | Average$1,038 | FlexibilityNo cancel fee | On-time81% |