$365+ Cheap flights from Seattle (SEA) to South Korea
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/16. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ICN
Sep 3 — Sep 101
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
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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 August 4, 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 August 4, 2026.
This Trip.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1412:25 pm -
1 stop26h 05m
Mon 9/217:30 am -
1 stop18h 35m
Deal found 7/31![Cathay Pacific logo]()
$829
This Kiwi.com deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2910:30 am -
1 stop16h 15m
Tue 9/151:30 pm -
2 stops44h 40m
Deal found 8/3![Multiple Airlines logo]()
$888
This Kiwi.com deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2810:30 am -
1 stop16h 15m
Tue 9/151:30 pm -
2 stops44h 40m
Deal found 8/3![Multiple Airlines logo]()
$889
This Ovago deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/177:35 pm -
1 stop31h 10m
Sun 10/258:45 pm -
1 stop33h 35m
Deal found 8/4![WestJet logo]()
$890
This WestJet deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:35 pm -
1 stop31h 10m
Sun 9/138:45 pm -
1 stop28h 55m
Deal found 8/3![WestJet logo]()
$892
This Kiwi.com deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2910:30 am -
1 stop16h 15m
Wed 9/167:15 pm -
2 stops30h 27m
Deal found 8/3![Multiple Airlines logo]()
$895
This Kiwi.com deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2810:30 am -
1 stop16h 15m
Wed 9/167:15 pm -
2 stops30h 27m
Deal found 8/3![Multiple Airlines logo]()
$896
This Booking.com deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2911:45 am -
1 stop18h 40m
Thu 10/299:00 pm -
Nonstop9h 55m
Deal found 8/3![Multiple Airlines logo]()
$899
This Kiwi.com deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2910:30 am -
1 stop16h 15m
Fri 9/117:15 pm -
1 stop28h 53m
Deal found 8/3![Multiple Airlines logo]()
$901
This Kiwi.com deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/307:35 pm -
1 stop31h 10m
Sat 9/126:00 pm -
1 stop15h 39m
Deal found 8/3![Multiple Airlines logo]()
$902
This Justfly.com deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/297:00 am -
1 stop19h 45m
Sun 9/201:30 pm -
2 stops35h 22m
Deal found 8/3![Multiple Airlines logo]()
$903
This oojo deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/1512:10 am -
1 stop17h 40m
Mon 11/3011:50 am -
1 stop23h 20m
Deal found 8/2![China Airlines logo]()
$911
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 August 4, 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 August 4, 2026.
This Trip.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1412:25 pm -
1 stop26h 05m
Mon 9/217:30 am -
1 stop18h 35m
Deal found 7/31![Cathay Pacific logo]()
$829
This STARLUX Airlines deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure STARLUX Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/91:15 am -
1 stop24h 40m
Mon 9/146:55 pm -
1 stop37h 15m
Deal found 8/2![STARLUX Airlines logo]()
$991
This China Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/101:55 am -
1 stop25h 10m
Mon 9/2112:35 pm -
1 stop22h 40m
Deal found 8/3![China Airlines logo]()
$993
This Mytrip deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/121:55 am -
1 stop17h 20m
Sun 9/209:55 pm -
2 stops34h 15m
Deal found 8/1![Multiple Airlines logo]()
$1,046
This EVA Air deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/91:30 am -
1 stop16h 50m
Mon 9/1411:20 am -
1 stop24h 20m
Deal found 7/30![EVA Air logo]()
$1,047
This United Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/285:20 pm -
1 stop19h 00m
Sat 9/124:50 pm -
1 stop15h 24m
Deal found 7/31![United Airlines logo]()
$1,057
This Asiana Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2612:10 am -
Nonstop12h 10m
Sun 11/19:00 pm -
Nonstop9h 55m
Deal found 8/3![Asiana Airlines logo]()
$1,337
This Delta deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/49:30 pm -
1 stop27h 50m
Fri 10/306:45 pm -
Nonstop10h 06m
Deal found 7/30![Delta logo]()
$1,353
This Japan Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/266:39 am -
2 stops36h 16m
Thu 10/298:00 am -
2 stops24h 04m
Deal found 8/3![Japan Airlines logo]()
$1,452
This Korean Air deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/101:00 pm -
1 stop14h 55m
Mon 9/147:55 am -
1 stop18h 45m
Deal found 7/31![Korean Air logo]()
$1,489
This Singapore Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1310:15 am -
1 stop29h 25m
Wed 9/169:30 am -
1 stop39h 15m
Deal found 7/31![Singapore Airlines logo]()
$1,635
This Cathay Pacific deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/188:41 am -
2 stops22h 59m
Mon 12/143:00 pm -
1 stop35h 10m
Deal found 7/30![Cathay Pacific logo]()
$922
This STARLUX Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure STARLUX Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/111:45 pm -
1 stop18h 45m
Thu 11/56:55 pm -
1 stop37h 10m
Deal found 8/3![STARLUX Airlines logo]()
$991
This Cathay Pacific deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/11:13 pm -
2 stops32h 52m
Tue 10/277:35 pm -
1 stop30h 35m
Deal found 7/30![Cathay Pacific logo]()
$928
This EVA Air deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/812:10 am -
1 stop24h 30m
Fri 12/46:55 pm -
1 stop16h 15m
Deal found 7/30![EVA Air logo]()
$1,055
This Cathay Pacific deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/227:08 pm -
2 stops37h 17m
Tue 11/31:45 pm -
1 stop36h 25m
Deal found 7/31![Cathay Pacific logo]()
$928
This FlightHub deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/41:30 am -
1 stop24h 30m
Sun 9/137:10 pm -
2 stops32h 12m
Deal found 7/30![Multiple Airlines logo]()
$1,136
This EVA Air deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/212:10 am -
1 stop26h 05m
Sat 11/141:50 pm -
1 stop20h 40m
Deal found 8/4![EVA Air logo]()
$1,096
This Cathay Pacific deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/34:20 pm -
2 stops33h 15m
Mon 11/303:00 pm -
1 stop35h 10m
Deal found 7/31![Cathay Pacific logo]()
$941
This KAYAK deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:36 pm -
2 stops22h 24m
Thu 11/56:55 pm -
1 stop15h 35m
Deal found 7/31![Multiple Airlines logo]()
$1,141
This Delta deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2912:50 pm -
Nonstop11h 50m
Mon 11/26:45 pm -
Nonstop10h 06m
Deal found 7/30![Delta logo]()
$1,355
This Cathay Pacific deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/210:50 am -
1 stop20h 50m
Sun 11/81:55 am -
1 stop24h 15m
Deal found 8/3![Cathay Pacific logo]()
$944
This Mytrip deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/131:15 am -
2 stops20h 15m
Thu 10/298:00 pm -
3 stops34h 37m
Deal found 8/2![Multiple Airlines logo]()
$1,159
This Japan Airlines deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/2811:55 am -
1 stop30h 00m
Fri 2/512:05 pm -
2 stops21h 51m
Deal found 8/1![Japan Airlines logo]()
$1,481
This Korean Air deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/231:00 pm -
1 stop14h 55m
Sun 9/277:55 am -
1 stop18h 45m
Deal found 8/2![Korean Air logo]()
$1,490
This Kiwi.com deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/148:15 pm -
2 stops34h 15m
Mon 9/2110:20 am -
1 stop24h 55m
Deal found 8/3![Multiple Airlines logo]()
$1,216
This Cathay Pacific deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2811:45 am -
1 stop18h 40m
Fri 10/303:00 pm -
1 stop35h 10m
Deal found 7/30![Cathay Pacific logo]()
$1,016
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/107:15 am -
2 stops19h 30m
Tue 11/177:40 am -
1 stop21h 11m
Deal found 7/31![Delta logo]()
$1,490
This Japan Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/226:39 am -
2 stops36h 01m
Tue 11/312:05 pm -
2 stops37h 00m
Deal found 7/31![Japan Airlines logo]()
$1,532
This Japan Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:39 am -
2 stops23h 26m
Tue 11/38:00 am -
2 stops41h 05m
Deal found 7/31![Japan Airlines logo]()
$1,547
Last-minute flights from Seattle to South KoreaDiscover last-minute flight deals from Seattle to South Korea. Data last updated August 4, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to South Korea. Data last updated August 4, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2810:30 am -
1 stop16h 15m
Tue 9/151:30 pm -
2 stops44h 40m
Deal found 8/3![Multiple Airlines logo]()
$889
This WestJet deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:35 pm -
1 stop31h 10m
Sun 9/138:45 pm -
1 stop28h 55m
Deal found 8/3![WestJet logo]()
$892
This Kiwi.com deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2810:30 am -
1 stop16h 15m
Wed 9/167:15 pm -
2 stops30h 27m
Deal found 8/3![Multiple Airlines logo]()
$896
This Kiwi.com deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2810:30 am -
1 stop16h 15m
Fri 9/117:15 pm -
1 stop28h 53m
Deal found 8/3![Multiple Airlines logo]()
$904
This Kiwi.com deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2910:30 am -
1 stop16h 15m
Tue 9/151:30 pm -
2 stops44h 40m
Deal found 8/3![Multiple Airlines logo]()
$888
This Kiwi.com deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2910:30 am -
1 stop16h 15m
Wed 9/167:15 pm -
2 stops30h 27m
Deal found 8/3![Multiple Airlines logo]()
$895
This Kiwi.com deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2910:30 am -
1 stop16h 15m
Fri 9/117:15 pm -
1 stop28h 53m
Deal found 8/3![Multiple Airlines logo]()
$901
This Justfly.com deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/297:00 am -
1 stop19h 45m
Sun 9/201:30 pm -
2 stops35h 22m
Deal found 8/3![Multiple Airlines logo]()
$903
This Kiwi.com deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/307:35 pm -
1 stop31h 10m
Sat 9/126:00 pm -
1 stop15h 39m
Deal found 8/3![Multiple Airlines logo]()
$902
This oojo deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/121:15 am -
1 stop18h 15m
Sun 9/202:30 pm -
1 stop17h 40m
Deal found 8/1![STARLUX Airlines logo]()
$945
This Trip.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1412:25 pm -
1 stop26h 05m
Mon 9/217:30 am -
1 stop18h 35m
Deal found 7/31![Cathay Pacific logo]()
$829
This Booking.com deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2911:45 am -
1 stop18h 40m
Thu 10/299:00 pm -
Nonstop9h 55m
Deal found 8/3![Multiple Airlines logo]()
$899
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 August 4, 2026.
Search for one-way flight options from Seattle to South Korea. Find affordable one-way fares based on user searches. Data last updated August 4, 2026.
This Super.com deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/167:35 pm -
1 stop31h 10m
Deal found 8/2![WestJet logo]()
$365
This Super.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/307:00 am -
1 stop19h 45m
Deal found 7/31![WestJet logo]()
$366
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1010:30 am -
1 stop16h 15m
Deal found 7/30![WestJet logo]()
$377
This Mytrip deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2610:30 am -
1 stop16h 15m
Deal found 8/3![WestJet logo]()
$380
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:35 pm -
1 stop31h 10m
Deal found 7/31![WestJet logo]()
$385
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/227:35 pm -
1 stop31h 10m
Deal found 7/30![WestJet logo]()
$388
This Mytrip deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/97:00 am -
1 stop19h 45m
Deal found 8/3![WestJet logo]()
$391
This oojo deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2612:25 pm -
1 stop33h 10m
Deal found 7/30![Cathay Pacific logo]()
$407
This Mytrip deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/212:25 pm -
1 stop26h 35m
Deal found 8/2![Cathay Pacific logo]()
$479
This Kiwi.com deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/17:35 pm -
2 stops44h 55m
Deal found 8/1![Multiple Airlines logo]()
$489
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/212:25 pm -
2 stops28h 40m
Deal found 7/30![Multiple Airlines logo]()
$503
This Kiwi.com deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/171:35 pm -
2 stops48h 35m
Deal found 8/2![Multiple Airlines logo]()
$513
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 August 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $829 (Trip.com) |
One-way from | $365 (Super.com) |
Popular in | June |
Cheapest in | November |
Average price | $886 |
Good round-trip deal | $856 or less |
Good one-way deal | $443 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from 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 2,558,603 searches. Data last updated August 4, 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
SeattleJeju City
SEA - CJU
SEACJU
Seattle/Tacoma Intl
Mon 9/14
12:25 pm-6:30 am
1 stop26h 05m
Jeju City
Mon 9/21
7:30 am-10:05 am
1 stop18h 35m
$829
SeattleIncheon
SEA - ICN
SEAICN
Seattle/Tacoma Intl
Wed 11/18
8:41 am-12:40 am
2 stops22h 59m
Incheon Intl
Mon 12/14
3:00 pm-9:10 am
1 stop35h 10m
$922
SeattleIncheon
SEA - ICN
SEAICN
Seattle/Tacoma Intl
Thu 10/1
1:13 pm-2:05 pm
2 stops32h 52m
Incheon Intl
Tue 10/27
7:35 pm-10:10 am
1 stop30h 35m
$928
SeattleIncheon
SEA - ICN
SEAICN
Seattle/Tacoma Intl
Thu 10/22
7:08 pm-12:25 am
2 stops37h 17m
Incheon Intl
Tue 11/3
1:45 pm-9:10 am
1 stop36h 25m
$928
SeattleIncheon
SEA - ICN
SEAICN
Seattle/Tacoma Intl
Tue 11/3
4:20 pm-6:35 pm
2 stops33h 15m
Incheon Intl
Mon 11/30
3:00 pm-9:10 am
1 stop35h 10m
$941
SeattleIncheon
SEA - ICN
SEAICN
Seattle/Tacoma Intl
Mon 11/2
10:50 am-12:40 am
1 stop20h 50m
Incheon Intl
Sun 11/8
1:55 am-9:10 am
1 stop24h 15m
$944
SeattleBusan
SEA - PUS
SEAPUS
Seattle/Tacoma Intl
Wed 9/9
1:15 am-5:55 pm
1 stop24h 40m
Busan Gimhae
Mon 9/14
6:55 pm-4:10 pm
1 stop37h 15m
$991
SeattleBusan
SEA - PUS
SEAPUS
Seattle/Tacoma Intl
Sun 11/1
11:45 pm-11:30 am
1 stop18h 45m
Busan Gimhae
Thu 11/5
6:55 pm-3:05 pm
1 stop37h 10m
$991
SeattleIncheon
SEA - ICN
SEAICN
Seattle/Tacoma Intl
Thu 9/10
1:55 am-7:05 pm
1 stop25h 10m
Incheon Intl
Mon 9/21
12:35 pm-7:15 pm
1 stop22h 40m
$993
SeattleIncheon
SEA - ICN
SEAICN
Seattle/Tacoma Intl
Mon 9/28
11:45 am-10:25 pm
1 stop18h 40m
Incheon Intl
Fri 10/30
3:00 pm-10:10 am
1 stop35h 10m
$1,016
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-CJU
SEA-ICN
SEA-PUS
SEA-GMP
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-CJU
SEA-ICN
SEA-PUS
SEA-GMP
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 $344). Flying from Seattle to South Korea in December is currently the most expensive (average of $1,347). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from 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 August 4, 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 43% 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 August 4, 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 28% of weekly flights between Seattle and South Korea have experienced delays in the past year, with the average delay time being 156 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 August 4, 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.
Comfort
8.3
Boarding
8.5
Crew
8.7
Food
8.1
Entertainment
8.2
Overall
8.4
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Comfort
8.3
Boarding
8.5
Crew
8.7
Food
8.1
Entertainment
8.2
Overall
8.4
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Comfort
8.3
Boarding
8.5
Crew
8.7
Food
8.1
Entertainment
8.2
Overall
8.4
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Comfort
8.3
Boarding
8.5
Crew
8.7
Food
8.1
Entertainment
8.2
Overall
8.4
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Comfort
8.3
Boarding
8.5
Crew
8.7
Food
8.1
Entertainment
8.2
Overall
8.4
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Comfort
8.3
Boarding
8.5
Crew
8.7
Food
8.1
Entertainment
8.2
Overall
8.4
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 August 4, 2026.
Popular flight searches
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Fly to South Korea regions
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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 2,558,603 searches. Data last updated August 4, 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$681 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$762 | Average$878 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$783 | Average$877 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$829 | Average$995 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$843 | Average$990 | FlexibilityNo cancel fee | On-time81% |