$349+ Cheap flights from Seattle (SEA) 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 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ICN
Oct 17 — Oct 241
Round-trip
1 adult, Economy
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Find cheap flights from Seattle 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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Seattle to South Korea
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Cheapest flights from Seattle to South KoreaExplore the most affordable flight options available from Seattle to South Korea. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2026.
Explore the most affordable flight options available from Seattle to South Korea. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2026.
This Justfly.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/111:45 am -
1 stop20h 40m
Mon 10/267:35 pm -
1 stop30h 10m
Deal found 9/14![Cathay Pacific logo]()
$877
This oojo deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” 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 9/2411:45 am -
1 stop20h 40m
Fri 10/21:55 am -
1 stop24h 10m
Deal found 9/12![Cathay Pacific logo]()
$885
This SmartFares deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” 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.
Tue 10/136:39 am -
2 stops25h 46m
Wed 10/213:10 pm -
1 stop34h 55m
Deal found 9/14![Multiple Airlines logo]()
$887
This Justfly.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3011:45 am -
1 stop32h 55m
Fri 10/91:55 am -
1 stop24h 10m
Deal found 9/15![Cathay Pacific logo]()
$889
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” 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 9/1711:45 am -
1 stop18h 40m
Sat 10/38:00 am -
1 stop18h 05m
Deal found 9/15![Cathay Pacific logo]()
$890
This Bravofly deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/141:13 pm -
2 stops31h 27m
Mon 9/288:05 pm -
1 stop30h 00m
Deal found 9/12![Cathay Pacific logo]()
$891
This SmartFares deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” 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.
Thu 9/2411:45 am -
1 stop18h 40m
Sun 9/273:10 pm -
2 stops33h 42m
Deal found 9/14![Multiple Airlines logo]()
$893
This Cheapflightsfares deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” 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.
Sun 10/111:15 am -
1 stop18h 15m
Tue 11/1012:30 pm -
1 stop22h 40m
Deal found 9/15![China Airlines logo]()
$895
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” 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 9/1911:45 am -
1 stop18h 40m
Wed 9/308:00 am -
1 stop18h 05m
Deal found 9/15![Cathay Pacific logo]()
$896
This Justfly.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/181:15 am -
1 stop25h 45m
Thu 11/511:50 am -
1 stop23h 20m
Deal found 9/14![China Airlines logo]()
$896
This oojo deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” 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 9/177:18 am -
2 stops25h 07m
Wed 9/308:05 pm -
1 stop30h 00m
Deal found 9/15![Multiple Airlines logo]()
$897
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/214:59 pm -
2 stops29h 06m
Mon 9/286:40 am -
1 stop19h 25m
Deal found 9/16![Multiple Airlines logo]()
$898
Best flights from Seattle to South KoreaDiscover carefully curated flight deals from Seattle to South Korea that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2026.
Discover carefully curated flight deals from Seattle to South Korea that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2026.
This China Airlines 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 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 9/16![China Airlines logo]()
$918
This Cathay Pacific deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” 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 9/295:59 pm -
2 stops36h 26m
Wed 10/281:55 am -
1 stop23h 50m
Deal found 9/13![Cathay Pacific logo]()
$949
This EVA Air deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” 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 10/251:10 am -
1 stop24h 30m
Fri 11/136:55 pm -
1 stop16h 15m
Deal found 9/13![EVA Air logo]()
$1,110
This Air Canada deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/48:40 am -
1 stop15h 30m
Mon 12/148:00 pm -
2 stops39h 22m
Deal found 9/11![Air Canada logo]()
$1,141
This oojo deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” 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.
Tue 11/106:00 am -
2 stops41h 05m
Tue 11/175:10 pm -
2 stops38h 54m
Deal found 9/13![Multiple Airlines logo]()
$1,141
This Delta deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” 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 11/312:30 pm -
Nonstop12h 15m
Thu 11/56:45 pm -
Nonstop10h 06m
Deal found 9/12![Delta logo]()
$1,192
This Korean Air deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/121:00 pm -
Nonstop11h 50m
Wed 11/44:10 pm -
Nonstop9h 55m
Deal found 9/15![Korean Air logo]()
$1,195
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” 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 10/297:00 am -
1 stop17h 15m
Thu 11/56:00 pm -
1 stop19h 47m
Deal found 9/14![United Airlines logo]()
$1,208
This STARLUX Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” 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 10/2712:45 am -
1 stop25h 10m
Wed 11/412:30 pm -
1 stop19h 35m
Deal found 9/12![STARLUX Airlines logo]()
$1,213
This Japan Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” 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 9/231:15 pm -
1 stop29h 25m
Mon 10/58:00 am -
1 stop18h 35m
Deal found 9/13![Japan Airlines logo]()
$1,347
This Singapore Airlines 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/178:40 am -
1 stop29h 40m
Thu 1/218:55 am -
1 stop39h 10m
Deal found 9/16![Singapore Airlines logo]()
$1,508
This Cheapflightsfares deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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.
Fri 11/1310:10 am -
2 stops19h 20m
Wed 12/212:20 pm -
1 stop18h 00m
Deal found 9/11![ANA logo]()
$1,729
This China Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” 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.
Sun 10/251:10 am -
1 stop25h 40m
Thu 11/1211:50 am -
1 stop23h 20m
Deal found 9/13![China Airlines logo]()
$918
This China Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” 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.
Thu 10/291:10 am -
1 stop17h 40m
Tue 11/1010:10 am -
1 stop25h 00m
Deal found 9/13![China Airlines logo]()
$935
This China Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” 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.
Sat 10/241:10 am -
1 stop25h 40m
Tue 11/1010:10 am -
1 stop25h 00m
Deal found 9/13![China Airlines logo]()
$935
This Delta deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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 11/1111:00 am -
Nonstop11h 55m
Wed 11/184:10 pm -
Nonstop9h 55m
Deal found 9/11![Delta logo]()
$1,194
This Korean Air deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/217:15 am -
1 stop18h 35m
Wed 9/307:00 pm -
Nonstop10h 37m
Deal found 9/12![Korean Air logo]()
$1,201
This STARLUX Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” 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 9/12![STARLUX Airlines logo]()
$1,213
This Mytrip deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” 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 10/281:10 am -
2 stops28h 45m
Thu 11/510:50 am -
1 stop23h 40m
Deal found 9/14![Multiple Airlines logo]()
$1,248
This China Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” 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.
Thu 10/291:10 am -
1 stop25h 40m
Sat 11/711:50 am -
1 stop23h 20m
Deal found 9/13![China Airlines logo]()
$951
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” 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 11/312:30 pm -
Nonstop12h 15m
Mon 11/96:45 pm -
Nonstop10h 06m
Deal found 9/15![Delta logo]()
$1,194
This Korean Air deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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.
Tue 11/174:36 pm -
1 stop19h 34m
Thu 12/106:45 pm -
Nonstop10h 11m
Deal found 9/11![Korean Air logo]()
$1,201
This Japan Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” 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.
Tue 11/38:54 am -
2 stops20h 11m
Thu 11/512:05 pm -
2 stops36h 02m
Deal found 9/12![Japan Airlines logo]()
$1,423
This Korean Air deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/127:16 am -
1 stop18h 04m
Tue 11/109:20 pm -
Nonstop9h 50m
Deal found 9/13![Korean Air logo]()
$1,201
This Delta deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” 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 10/119:35 pm -
1 stop27h 45m
Wed 10/214:40 pm -
Nonstop10h 00m
Deal found 9/13![Delta logo]()
$1,219
This oojo deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” 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 11/218:04 pm -
2 stops52h 51m
Fri 11/273:40 pm -
2 stops40h 46m
Deal found 9/15![Multiple Airlines logo]()
$1,458
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” 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 10/307:16 am -
1 stop18h 24m
Fri 11/134:10 pm -
Nonstop9h 55m
Deal found 9/15![Delta logo]()
$1,220
This Japan Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” 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.
Sun 11/18:54 am -
2 stops20h 11m
Wed 11/412:05 pm -
2 stops36h 02m
Deal found 9/12![Japan Airlines logo]()
$1,539
This FlightHub deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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.
Tue 11/173:40 pm -
1 stop26h 30m
Thu 12/1012:20 pm -
1 stop18h 00m
Deal found 9/11![ANA logo]()
$1,736
This Korean Air deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” 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.
Tue 11/103:13 pm -
2 stops35h 37m
Tue 11/177:40 am -
1 stop21h 11m
Deal found 9/12![Korean Air logo]()
$1,310
Last-minute flights from Seattle to South KoreaDiscover last-minute flight deals from Seattle to South Korea. Data last updated September 17, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to South Korea. Data last updated September 17, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” 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 9/1711:45 am -
1 stop18h 40m
Sat 10/38:00 am -
1 stop18h 05m
Deal found 9/15![Cathay Pacific logo]()
$890
This oojo deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” 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 9/177:18 am -
2 stops25h 07m
Wed 9/308:05 pm -
1 stop30h 00m
Deal found 9/15![Multiple Airlines logo]()
$897
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” 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 9/1911:45 am -
1 stop18h 40m
Wed 9/308:00 am -
1 stop18h 05m
Deal found 9/15![Cathay Pacific logo]()
$896
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/214:59 pm -
2 stops29h 06m
Mon 9/286:40 am -
1 stop19h 25m
Deal found 9/16![Multiple Airlines logo]()
$898
This oojo deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” 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 9/2411:45 am -
1 stop20h 40m
Fri 10/21:55 am -
1 stop24h 10m
Deal found 9/12![Cathay Pacific logo]()
$885
This SmartFares deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” 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.
Thu 9/2411:45 am -
1 stop18h 40m
Sun 9/273:10 pm -
2 stops33h 42m
Deal found 9/14![Multiple Airlines logo]()
$893
This Justfly.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3011:45 am -
1 stop32h 55m
Fri 10/91:55 am -
1 stop24h 10m
Deal found 9/15![Cathay Pacific logo]()
$889
This Justfly.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/111:45 am -
1 stop20h 40m
Mon 10/267:35 pm -
1 stop30h 10m
Deal found 9/14![Cathay Pacific logo]()
$877
This Cheapflightsfares deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” 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.
Sun 10/111:15 am -
1 stop18h 15m
Tue 11/1012:30 pm -
1 stop22h 40m
Deal found 9/15![China Airlines logo]()
$895
This SmartFares deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” 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.
Tue 10/136:39 am -
2 stops25h 46m
Wed 10/213:10 pm -
1 stop34h 55m
Deal found 9/14![Multiple Airlines logo]()
$887
This Justfly.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/181:15 am -
1 stop25h 45m
Thu 11/511:50 am -
1 stop23h 20m
Deal found 9/14![China Airlines logo]()
$896
This FlightHub deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” 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.
Tue 10/271:10 am -
1 stop17h 40m
Tue 11/1010:10 am -
1 stop25h 00m
Deal found 9/13![China Airlines logo]()
$898
One-way flights from Seattle to South KoreaSearch for one-way flight options from Seattle to South Korea. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.
Search for one-way flight options from Seattle to South Korea. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” 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 11/28:09 pm -
2 stops56h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$349
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” 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 11/48:09 pm -
2 stops56h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$375
This Super.com deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” 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 10/2310:30 am -
1 stop16h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![WestJet logo]()
$382
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/146:33 pm -
1 stop33h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Multiple Airlines logo]()
$386
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/311:55 pm -
1 stop39h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Multiple Airlines logo]()
$388
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” 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 11/107:33 pm -
1 stop32h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$389
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2210:30 am -
1 stop16h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![WestJet logo]()
$390
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” 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 10/308:09 pm -
2 stops57h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$392
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” 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 11/98:09 pm -
2 stops56h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$393
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” 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 11/78:09 pm -
2 stops32h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$396
This Kiwi.com deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” 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 10/227:55 pm -
3 stops30h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Multiple Airlines logo]()
$397
This FlightHub deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” 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 11/1612:10 am -
1 stop25h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![China Airlines logo]()
$485
Find flight deals from Seattle to South Korea
Keep the following information in mind while searching for Seattle to South Korea flight deals. Data was last updated September 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $877 (FlightHub) |
One-way from | $349 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $906 |
Good round-trip deal | $799 or less |
Good one-way deal | $428 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle 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 17, 2026.
Use the filters below to find and compare flights from Seattle 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 10/27
11:25 am-1:50 pm
1 stop34h 25m
Incheon Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$439
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Tue 10/27
12:14 pm-9:20 pm
2 stops41h 06m
Incheon Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$451
SeattleBusan
SEA Seattle/Tacoma Intl - PUS Busan Gimhae
SEAPUS
Seattle/Tacoma Intl
Mon 11/16
12:10 am-6:50 pm
1 stop25h 40m
Busan Gimhae
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$485
SeattleBusan
SEA Seattle/Tacoma Intl - PUS Busan Gimhae
SEAPUS
Seattle/Tacoma Intl
Tue 11/17
8:09 pm-10:35 am
3 stops45h 26m
Busan Gimhae
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$548
SeattleBusan
SEA Seattle/Tacoma Intl - PUS Busan Gimhae
SEAPUS
Seattle/Tacoma Intl
Thu 9/24
1:35 pm-8:45 pm
1 stop15h 10m
Busan Gimhae
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$564
SeattleBusan
SEA Seattle/Tacoma Intl - PUS Busan Gimhae
SEAPUS
Seattle/Tacoma Intl
Sat 10/3
10:30 am-2:05 pm
3 stops35h 35m
Busan Gimhae
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$572
SeattleJeju City
SEA Seattle/Tacoma Intl - CJU Jeju City
SEACJU
Seattle/Tacoma Intl
Fri 10/16
11:10 pm-10:30 pm
2 stops31h 20m
Jeju City
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$573
SeattleSeoul
SEA Seattle/Tacoma Intl - GMP Seoul Gimpo Intl
SEAGMP
Seattle/Tacoma Intl
Sat 11/7
12:10 am-9:20 am
2 stops40h 10m
Seoul Gimpo Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$594
SeattleBusan
SEA Seattle/Tacoma Intl - PUS Busan Gimhae
SEAPUS
Seattle/Tacoma Intl
Sat 10/3
1:35 pm-7:45 am
1 stop26h 10m
Busan Gimhae
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$608
SeattleJeju City
SEA Seattle/Tacoma Intl - CJU Jeju City
SEACJU
Seattle/Tacoma Intl
Thu 10/15
7:55 pm-7:25 pm
2 stops31h 30m
Jeju City
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$611
Showing 1-10 of 58 resultsSorted by cheapest first
Best time to book a flight from Seattle to South Korea
Have a flexible travel schedule? Discover the best time to fly to South Korea from Seattle with our price prediction graph.
SEA-ICN
SEA-PUS
SEA-GMP
SEA-CJU
SEA-TAE
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 Seattle to South Korea
SEA-KR0
SEA-ICN
SEA-PUS
SEA-GMP
SEA-CJU
What is the cheapest month to book a flight from Seattle to South Korea?
Currently, April is the cheapest month in which you can book a flight from Seattle to South Korea (average of $343). Flying from Seattle to South Korea in December is currently the most expensive (average of $1,365). 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 SEA to KR?
Find hourly flight availability from Seattle 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 17, 2026.
When flying from Seattle to South Korea, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 78% versus a flight in the afternoon.
Weekly flight availability from Seattle to South Korea
Explore weekly flight availability from Seattle 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 17, 2026.
The most flights from SEA 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 often are flights from Seattle to South Korea delayed?
About 26% of weekly flights between Seattle and South Korea have experienced delays in the past year, with the average delay time being 148 minutes.
What is the most punctual flight time for Seattle to South Korea flights?
Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Tuesday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Seattle to South Korea flights?
Over the last year, Delta have had the lowest number of delays on this route, with just 19% of flights being delayed.
How far ahead should I book a flight from Seattle to South Korea?
Booking 68 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to South Korea. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Reviews of airlines servicing South Korea
Get insights into the airlines that provide service to South Korea. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to South Korea. Reviews last updated September 17, 2026.
Read reviews from past customers who have flown Korean Air,Asiana Airlines, andAlaska Airlines from Seattle to South Korea. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.5
Crew
8.7
Food
8.1
Overall
8.4
Entertainment
8.2
Comfort
8.3
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Boarding
8.5
Crew
8.7
Food
8.1
Overall
8.4
Entertainment
8.2
Comfort
8.3
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Boarding
8.5
Crew
8.7
Food
8.1
Overall
8.4
Entertainment
8.2
Comfort
8.3
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Boarding
8.5
Crew
8.7
Food
8.1
Overall
8.4
Entertainment
8.2
Comfort
8.3
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Boarding
8.5
Crew
8.7
Food
8.1
Overall
8.4
Entertainment
8.2
Comfort
8.3
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Boarding
8.5
Crew
8.7
Food
8.1
Overall
8.4
Entertainment
8.2
Comfort
8.3
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Related info for your journey
Find useful and relevant information for your journey from Seattle to South Korea. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Seattle to South Korea
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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 Seattle to South Korea by cabin class
Find flights from Seattle to South Korea, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and South Korea flights
Browse other Seattle and South Korea flight options. Last updated on September 17, 2026.
Popular flight searches
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Top 7 airlines flying from Seattle to South Korea
Discover the top 7 airlines that operate flights from Seattle 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 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$160 | Average$718 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$335 | Average$338 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$523 | Average$673 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$686 | Average$878 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$786 | Average$887 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$823 | Average$1,043 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$848 | Average$1,017 | FlexibilityNo cancel fee | On-time81% |