$396+ Cheap flights from Seattle (SEA) to Seoul (SEL)
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 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SEL
Sep 24 — Oct 11
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Seattle to Seoul 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.Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Seoul are usually found in January or February, booked 45 days in advance, depart on a Wednesday or Monday and return on a Monday
Cheap flight deals from Seattle to Seoul
Cheapest
Best
Last-minute
One-way
Cheapest flights from Seattle to SeoulExplore the most affordable flight options available from Seattle to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 25, 2026.
Explore the most affordable flight options available from Seattle to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 25, 2026.
This oojo deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” 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 9/912:25 pm -
1 stop18h 00m
Wed 9/238:00 am -
1 stop18h 05m
Deal found 8/24![Cathay Pacific logo]()
$845
This oojo deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” 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 9/912:25 pm -
1 stop20h 00m
Mon 10/58:05 pm -
1 stop30h 00m
Deal found 8/24![Cathay Pacific logo]()
$847
This oojo deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” 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 9/312:25 pm -
1 stop20h 00m
Thu 9/108:00 am -
1 stop18h 20m
Deal found 8/24![Cathay Pacific logo]()
$848
This oojo deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” 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 stop32h 55m
Mon 9/283:10 pm -
1 stop34h 55m
Deal found 8/24![Cathay Pacific logo]()
$854
This Mytrip deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” 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.
Sat 11/77:05 pm -
3 stops30h 40m
Sat 11/288:30 pm -
1 stop39h 00m
Deal found 8/24![Multiple Airlines logo]()
$857
This Justfly.com deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” 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.
Tue 10/1311:45 am -
1 stop18h 40m
Mon 10/261:45 pm -
1 stop36h 25m
Deal found 8/24![Cathay Pacific logo]()
$859
This Kiwi.com deal was found by Cheapflights users on 8/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2312:05 pm -
1 stop17h 35m
Sun 10/47:15 pm -
1 stop29h 54m
Deal found 8/22![Multiple Airlines logo]()
$870
This Kiwi.com deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” 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 10/1311:45 am -
1 stop39h 20m
Wed 10/281:55 am -
1 stop24h 15m
Deal found 8/24![Cathay Pacific logo]()
$871
This Kiwi.com deal was found by Cheapflights users on 8/20. 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.
Thu 9/1012:25 pm -
1 stop18h 00m
Mon 9/213:10 pm -
1 stop34h 55m
Deal found 8/20![Cathay Pacific logo]()
$872
This Booking.com deal was found by Cheapflights users on 8/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2911:45 am -
1 stop39h 20m
Thu 10/299:00 pm -
Nonstop9h 55m
Deal found 8/20![Multiple Airlines logo]()
$873
This Kiwi.com deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” 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 10/319:59 am -
1 stop19h 21m
Sat 11/147:45 pm -
1 stop18h 18m
Deal found 8/23![Multiple Airlines logo]()
$874
This Super.com deal was found by Cheapflights users on 8/21. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/41:30 am -
1 stop24h 40m
Sat 10/311:50 pm -
1 stop20h 40m
Deal found 8/21![EVA Air logo]()
$1,035
Best flights from Seattle to SeoulDiscover carefully curated flight deals from Seattle to Seoul that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 25, 2026.
Discover carefully curated flight deals from Seattle to Seoul that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 25, 2026.
This oojo deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” 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 9/1711:45 am -
1 stop18h 40m
Wed 9/233:10 pm -
1 stop34h 55m
Deal found 8/24![Cathay Pacific logo]()
$848
This oojo deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” 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 9/37:18 am -
2 stops25h 07m
Thu 9/108:00 am -
2 stops23h 32m
Deal found 8/24![Multiple Airlines logo]()
$957
This Delta deal was found by Cheapflights users on 8/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/512:35 pm -
Nonstop12h 15m
Thu 11/126:45 pm -
Nonstop10h 06m
Deal found 8/20![Delta logo]()
$1,193
This Orbitz deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/31:35 pm -
Nonstop11h 55m
Thu 9/107:35 pm -
Nonstop10h 05m
Deal found 8/24![Alaska Airlines logo]()
$1,193
This Japan Airlines deal was found by Cheapflights users on 8/21. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/76:39 am -
2 stops22h 36m
Wed 10/148:00 am -
2 stops24h 04m
Deal found 8/21![Japan Airlines logo]()
$1,389
This Cathay Pacific deal was found by Cheapflights users on 8/20. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1611:45 am -
1 stop20h 40m
Sun 9/203:10 pm -
1 stop34h 55m
Deal found 8/20![Cathay Pacific logo]()
$882
This Cathay Pacific deal was found by Cheapflights users on 8/22. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/196:00 am -
2 stops37h 45m
Fri 11/271:55 am -
1 stop24h 15m
Deal found 8/22![Cathay Pacific logo]()
$1,056
This Delta deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” 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 9/211:00 pm -
Nonstop11h 50m
Wed 9/307:00 pm -
Nonstop10h 37m
Deal found 8/23![Delta logo]()
$1,193
This Delta deal was found by Cheapflights users on 8/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2412:50 pm -
Nonstop11h 50m
Wed 10/144:40 pm -
Nonstop10h 00m
Deal found 8/20![Delta logo]()
$1,193
This Cathay Pacific deal was found by Cheapflights users on 8/20. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:59 pm -
2 stops26h 41m
Sun 9/131:55 am -
2 stops47h 17m
Deal found 8/20![Cathay Pacific logo]()
$1,153
This Japan Airlines deal was found by Cheapflights users on 8/21. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:39 am -
2 stops22h 36m
Fri 10/168:00 am -
2 stops24h 04m
Deal found 8/21![Japan Airlines logo]()
$1,427
This Delta deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” 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 9/1712:50 pm -
Nonstop11h 50m
Wed 9/234:40 pm -
Nonstop10h 00m
Deal found 8/24![Delta logo]()
$1,193
This Japan Airlines deal was found by Cheapflights users on 8/21. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:39 am -
2 stops36h 01m
Fri 10/1612:05 pm -
2 stops19h 59m
Deal found 8/21![Japan Airlines logo]()
$1,427
This Japan Airlines deal was found by Cheapflights users on 8/21. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/187:10 am -
2 stops22h 05m
Fri 10/27:15 pm -
1 stop31h 20m
Deal found 8/21![Multiple Airlines logo]()
$1,645
This Japan Airlines deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” 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 10/206:39 am -
2 stops22h 36m
Thu 10/2212:05 pm -
2 stops19h 59m
Deal found 8/24![Japan Airlines logo]()
$1,453
This Japan Airlines deal was found by Cheapflights users on 8/21. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:39 am -
2 stops36h 01m
Mon 10/127:15 pm -
2 stops36h 49m
Deal found 8/21![Japan Airlines logo]()
$1,558
This Japan Airlines deal was found by Cheapflights users on 8/20. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:10 am -
2 stops22h 05m
Sat 10/312:05 pm -
2 stops19h 59m
Deal found 8/20![Japan Airlines logo]()
$1,781
This Japan Airlines deal was found by Cheapflights users on 8/22. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/128:10 am -
2 stops20h 55m
Sat 2/208:15 am -
2 stops25h 41m
Deal found 8/22![Japan Airlines logo]()
$1,808
This Japan Airlines deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” 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.
Fri 10/27:10 am -
2 stops22h 05m
Mon 10/128:00 am -
2 stops24h 04m
Deal found 8/23![Japan Airlines logo]()
$1,815
This Japan Airlines deal was found by Cheapflights users on 8/22. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/191:15 pm -
1 stop29h 25m
Sat 9/2612:05 pm -
2 stops18h 16m
Deal found 8/22![Japan Airlines logo]()
$1,816
Last-minute flights from Seattle to SeoulDiscover last-minute flight deals from Seattle to Seoul. Data last updated August 25, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Seoul. Data last updated August 25, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” 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 9/312:25 pm -
1 stop20h 00m
Thu 9/108:00 am -
1 stop18h 20m
Deal found 8/24![Cathay Pacific logo]()
$848
This oojo deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” 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 9/912:25 pm -
1 stop18h 00m
Wed 9/238:00 am -
1 stop18h 05m
Deal found 8/24![Cathay Pacific logo]()
$845
This oojo deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” 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 9/912:25 pm -
1 stop20h 00m
Mon 10/58:05 pm -
1 stop30h 00m
Deal found 8/24![Cathay Pacific logo]()
$847
This Kiwi.com deal was found by Cheapflights users on 8/20. 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.
Thu 9/1012:25 pm -
1 stop18h 00m
Mon 9/213:10 pm -
1 stop34h 55m
Deal found 8/20![Cathay Pacific logo]()
$872
This Kiwi.com deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” 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 9/1012:25 pm -
1 stop18h 00m
Thu 9/178:00 am -
1 stop18h 05m
Deal found 8/23![Cathay Pacific logo]()
$874
This Trip.com deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1012:25 pm -
1 stop18h 00m
Sat 10/108:30 pm -
1 stop39h 35m
Deal found 8/23![Multiple Airlines logo]()
$875
This Trip.com deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1011:55 am -
2 stops40h 30m
Tue 9/158:30 pm -
1 stop39h 35m
Deal found 8/24![Multiple Airlines logo]()
$878
This Gotogate deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1810:30 am -
1 stop16h 15m
Thu 10/17:20 am -
1 stop28h 45m
Deal found 8/23![Multiple Airlines logo]()
$876
This oojo deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” 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 stop32h 55m
Mon 9/283:10 pm -
1 stop34h 55m
Deal found 8/24![Cathay Pacific logo]()
$854
This Kiwi.com deal was found by Cheapflights users on 8/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2312:05 pm -
1 stop17h 35m
Wed 10/77:15 pm -
1 stop15h 18m
Deal found 8/22![Multiple Airlines logo]()
$870
This Booking.com deal was found by Cheapflights users on 8/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2911:45 am -
1 stop39h 20m
Thu 10/299:00 pm -
Nonstop9h 55m
Deal found 8/20![Multiple Airlines logo]()
$873
This Booking.com deal was found by Cheapflights users on 8/22. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2911:45 am -
1 stop39h 20m
Fri 10/239:20 pm -
Nonstop9h 55m
Deal found 8/22![Multiple Airlines logo]()
$877
One-way flights from Seattle to SeoulSearch for one-way flight options from Seattle to Seoul. Find affordable one-way fares based on user searches. Data last updated August 25, 2026.
Search for one-way flight options from Seattle to Seoul. Find affordable one-way fares based on user searches. Data last updated August 25, 2026.
This FlightHub deal was found by Cheapflights users on 8/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/42:30 pm -
1 stop35h 15m
Deal found 8/20![WestJet logo]()
$396
This FlightHub deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/62:30 pm -
1 stop35h 15m
Deal found 8/24![WestJet logo]()
$397
This Kiwi.com deal was found by Cheapflights users on 8/19. 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.
Fri 10/168:00 pm -
3 stops54h 45m
Deal found 8/19![Multiple Airlines logo]()
$403
This Kiwi.com deal was found by Cheapflights users on 8/20. 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 11/79:39 pm -
3 stops28h 06m
Deal found 8/20![Multiple Airlines logo]()
$404
This Kiwi.com deal was found by Cheapflights users on 8/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/69:39 pm -
3 stops28h 06m
Deal found 8/22![Multiple Airlines logo]()
$406
This Kiwi.com deal was found by Cheapflights users on 8/21. 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.
Thu 10/2910:55 pm -
3 stops51h 50m
Deal found 8/21![Multiple Airlines logo]()
$414
This Kiwi.com deal was found by Cheapflights users on 8/20. 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.
Fri 9/188:15 pm -
1 stop27h 35m
Deal found 8/20![Multiple Airlines logo]()
$422
This Kiwi.com deal was found by Cheapflights users on 8/20. 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.
Mon 11/93:40 pm -
2 stops33h 20m
Deal found 8/20![Multiple Airlines logo]()
$486
This Kiwi.com deal was found by Cheapflights users on 8/20. 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.
Tue 11/103:40 pm -
2 stops33h 20m
Deal found 8/20![Multiple Airlines logo]()
$503
This Kiwi.com deal was found by Cheapflights users on 8/20. 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.
Sun 11/83:40 pm -
2 stops31h 30m
Deal found 8/20![Multiple Airlines logo]()
$523
This Kiwi.com deal was found by Cheapflights users on 8/20. 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.
Mon 8/3112:25 pm -
2 stops51h 15m
Deal found 8/20![Multiple Airlines logo]()
$524
This Kiwi.com deal was found by Cheapflights users on 8/20. 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.
Wed 11/43:40 pm -
2 stops33h 20m
Deal found 8/20![Multiple Airlines logo]()
$527
Find flight deals from Seattle to Seoul
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Seoul (SEL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $845 (oojo) |
One-way from | $396 (FlightHub) |
Popular in | December |
Cheapest in | January |
Average price | $1,067 |
Good round-trip deal | $829 or less |
Good one-way deal | $426 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Seoul 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 August 25, 2026.
Use the filters below to find and compare flights from Seattle to Seoul 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
Thu 9/17
11:45 am-10:25 pm
1 stop18h 40m
Incheon Intl
Wed 9/23
3:10 pm-10:05 am
1 stop34h 55m
$848
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Wed 9/16
11:45 am-12:25 am
1 stop20h 40m
Incheon Intl
Sun 9/20
3:10 pm-10:05 am
1 stop34h 55m
$882
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Thu 9/3
7:18 am-12:25 am
2 stops25h 07m
Incheon Intl
Thu 9/10
8:00 am-3:32 pm
2 stops23h 32m
$957
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Thu 11/19
6:00 am-12:45 pm
2 stops37h 45m
Incheon Intl
Fri 11/27
1:55 am-9:10 am
1 stop24h 15m
$1,056
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Sat 9/5
5:59 pm-12:40 pm
2 stops26h 41m
Incheon Intl
Sun 9/13
1:55 am-9:12 am
2 stops47h 17m
$1,153
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Thu 11/5
12:35 pm-5:50 pm
Nonstop12h 15m
Incheon Intl
Thu 11/12
6:45 pm-11:51 am
Nonstop10h 06m
$1,193
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Thu 9/3
1:35 pm-5:30 pm
Nonstop11h 55m
Incheon Intl
Thu 9/10
7:35 pm-1:40 pm
Nonstop10h 05m
$1,193
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Mon 9/21
1:00 pm-4:50 pm
Nonstop11h 50m
Incheon Intl
Wed 9/30
7:00 pm-1:37 pm
Nonstop10h 37m
$1,193
Quickest round-trip
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Thu 9/24
12:50 pm-4:40 pm
Nonstop11h 50m
Incheon Intl
Wed 10/14
4:40 pm-10:40 am
Nonstop10h 00m
$1,193
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Thu 9/17
12:50 pm-4:40 pm
Nonstop11h 50m
Incheon Intl
Wed 9/23
4:40 pm-10:40 am
Nonstop10h 00m
$1,193
Showing 1-10 of 42 resultsSorted by cheapest first
Compare providers for flights from Seattle to Seoul
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Seoul in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Seattle-Seoul flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Seoul flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Seoul flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-Seoul flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Seoul flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Seattle to Seoul
Have a flexible travel schedule? Discover the best time to fly to Seoul from Seattle with our price prediction graph.
SEA-SEL
SEA-ICN
SEA-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 Seattle to Seoul
SEA-SEL
SEA-ICN
SEA-GMP
What is the cheapest month to book a flight from Seattle to Seoul?
Currently, April is the cheapest month in which you can book a flight from Seattle to Seoul (average of $343). Flying from Seattle to Seoul in December is currently the most expensive (average of $1,372). 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 SEL?
Find hourly flight availability from Seattle to Seoul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 25, 2026.
It’s optimal to fly from Seattle to Seoul at noon. By choosing this option you can save up to 59% on the cost of your flight, compared to a flight in the afternoon.
Weekly flight availability from Seattle to Seoul
Explore weekly flight availability from Seattle to Seoul. 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 25, 2026.
The most flights from SEA to SEL 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 much does it cost to fly round-trip from Seattle to Seoul?
Airfare is typical for this route at the moment.
Seattle to Seoul flights typically cost between $844 and $1,272 in September.The cheapest round-trip price found within the last 5 days was $845 on Cathay Pacific (Sep 9-Sep 23).
What’s the top layover airport for flights from Seattle to Seoul?
Share of 1-stop round-trip flights from Seattle to Seoul chosen by Cheapflights users in the past 12 months, using the same layover each way.
Hong Kong (HKG) – chosen by Cheapflights users on 78% of 1-stop itineraries from Seattle to Seoul on Cheapflights.
What’s the cheapest layover airport for flights from Seattle to Seoul?
Average round-trip fare for 1-stop flights from Seattle to Seoul, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Hong Kong (HKG) is the most affordable 1-stop option, with an average round-trip price of $837.
What’s the fastest layover option from Seattle to Seoul?
Shortest average travel time for 1-stop one-way flights from Seattle to Seoul, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Calgary (YYC) have the shortest average one-way travel time for 1-stop routes: 16h 15m.
Which airport typically offers the quickest layover for flights from Seattle to Seoul?
Average layover duration for 1-stop one-way flights from Seattle to Seoul, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Hong Kong (HKG) offer the fastest connection on this route, with an average layover time of 1h 52m.
How far ahead should I book a flight from Seattle to Seoul?
Booking 68 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Seoul. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
The best insider tips for Seattle to Seoul flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Seattle to Seoul trip
Our travel experts
Reviews of airlines servicing Seoul
Get insights into the airlines that provide service to Seoul. 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 Seoul. Reviews last updated August 25, 2026.
Peruse reviews from past customers who have flown with Korean Air,Asiana Airlines, andAlaska Airlines from Seattle to Seoul to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
8.2
Comfort
8.3
Overall
8.4
Crew
8.7
Boarding
8.5
Food
8.1
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Entertainment
8.2
Comfort
8.3
Overall
8.4
Crew
8.7
Boarding
8.5
Food
8.1
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Entertainment
8.2
Comfort
8.3
Overall
8.4
Crew
8.7
Boarding
8.5
Food
8.1
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Entertainment
8.2
Comfort
8.3
Overall
8.4
Crew
8.7
Boarding
8.5
Food
8.1
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Entertainment
8.2
Comfort
8.3
Overall
8.4
Crew
8.7
Boarding
8.5
Food
8.1
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Entertainment
8.2
Comfort
8.3
Overall
8.4
Crew
8.7
Boarding
8.5
Food
8.1
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 Seoul. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Seattle
Popular flights
Seoul flight routes
Alternative routes for Seattle to Seoul
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Seoul by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Seattle to Seoul by cabin class
Find flights from Seattle to Seoul, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and Seoul flights
Browse other Seattle and Seoul flight options. Last updated on August 25, 2026.
Other flights from Seattle
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on August 25, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Seoul
Explore flights to Seoul departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 25, 2026.
Top 7 airlines flying from Seattle to Seoul
Discover the top 7 airlines that operate flights from Seattle to Seoul. 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 August 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$160 | Average$829 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$335 | Average$338 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$523 | Average$672 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$762 | Average$878 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$781 | Average$883 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$829 | Average$1,015 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$844 | Average$1,008 | FlexibilityNo cancel fee | On-time81% |