Cheap Flights from Seattle, WA to Seoul from $434

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On Cheapflightsplus.com you will find 4 direct and 997 connecting flights from Seattle to Seoul. You can compare airfare deals from 32 airlines and multiple travel sites from $434, book and save on cheap plane tickets and last minute offers. Also check out SEA-SEL flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Seattle to Seoul Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $434 (one-way), $744 (round-trip).

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Best Flights from Seattle to Seoul Today

Take a look at the list of non stop flights and flights with layovers from Seattle to Seoul with the lowest price of $434. The fastest direct flight takes 11h 20m and the fastest connecting – 14h 5m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $500 Find flight	14:15 Seattle Seattle-Tacoma Intl	17:55+1 день Seoul Incheon International	11h 40m	Asiana Airlines	OZ271
from $554 Find flight	13:20 Seattle Seattle-Tacoma Intl	16:40+1 день Seoul Incheon International	11h 20m	Korean Air	KE42
from $783 Find flight	12:55 Seattle Seattle-Tacoma Intl	16:30+1 день Seoul Incheon International	11h 35m	Korean Air	KE5020
from $4927 Find flight	14:15 Seattle Seattle-Tacoma Intl	17:55+1 день Seoul Incheon International	11h 40m	United Airlines	UA7292
from $572 Find flight	21:40 Seattle Seattle-Tacoma Intl	20:30+2 дня Seoul Incheon International	30h 50m layover 15h 32m - San Francisco	Alaska Airlines	AS980 YP112
from $610 Find flight	21:45 Seattle Seattle-Tacoma Intl	20:30+2 дня Seoul Incheon International	30h 45m layover 15h 44m - San Francisco	Hawaiian Airlines	HA6105 YP112
from $639 Find flight	10:49 Seattle Seattle-Tacoma Intl	15:45+2 дня Seoul Incheon International	36h 56m layover 21h 12m - Los Angeles	Frontier Airlines	F92176 YP102
from $434 Find flight	13:12 Seattle Seattle-Tacoma Intl	14:55+3 дня Seoul Incheon International	57h 43m layover 20h 17m - Vancouver 23h 30m - Tokyo	Alaska Airlines	AS2436 ZG21 TW242
from $438 Find flight	11:36 Seattle Seattle-Tacoma Intl	22:00+2 дня Seoul Incheon International	42h 24m layover 21h 37m - Vancouver 6h 50m - Tokyo	Alaska Airlines	AS553 ZG21 7C1122
from $454 Find flight	11:36 Seattle Seattle-Tacoma Intl	21:15+2 дня Seoul Incheon International	41h 39m layover 21h 37m - Vancouver 5h 55m - Tokyo	Alaska Airlines	AS553 ZG21 ZE604
from $454 Find flight	11:36 Seattle Seattle-Tacoma Intl	23:30+3 дня Seoul Incheon International	43h 54m layover 21h 37m - Vancouver 8h 30m - Tokyo	Alaska Airlines	AS553 ZG21 ET673
from $456 Find flight	11:36 Seattle Seattle-Tacoma Intl	21:45+2 дня Seoul Incheon International	42h 9m layover 21h 37m - Vancouver 6h 20m - Tokyo	Alaska Airlines	AS553 ZG21 TW246
from $461 Find flight	11:36 Seattle Seattle-Tacoma Intl	19:40+2 дня Seoul Incheon International	40h 4m layover 21h 37m - Vancouver 4h 20m - Tokyo	Alaska Airlines	AS553 ZG21 7C1106
from $461 Find flight	11:36 Seattle Seattle-Tacoma Intl	21:10+2 дня Seoul Incheon International	41h 34m layover 21h 37m - Vancouver 5h 45m - Tokyo	Alaska Airlines	AS553 ZG21 7C1108
from $461 Find flight	11:36 Seattle Seattle-Tacoma Intl	22:15+2 дня Seoul Incheon International	42h 39m layover 21h 37m - Vancouver 7h 0m - Tokyo	Alaska Airlines	AS553 ZG21 BX165
from $503 Find flight	15:57 Seattle Seattle-Tacoma Intl	22:00+2 дня Seoul Incheon International	38h 3m layover 17h 32m - Vancouver 6h 50m - Tokyo	Alaska Airlines	AS2033 ZG21 7C1122

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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on May 17, 2025

Flight Schedule Seattle (Washington) to Seoul

Full flight schedule will help you in detecting at what time planes fly from Seattle to Seoul. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.

Departure	Flight Details	Flight Duration	Price
12:55 — 16:30 +1 day	12:55 — 16:30 KE5020 Korean Air Seattle — Seoul	11h 35m	Find flight from$783
13:20 — 16:40 +1 day	13:20 — 16:40 KE42 Korean Air Seattle — Seoul	11h 20m	Find flight from$554
14:15 — 17:55 +1 day	14:15 — 17:55 OZ271 Asiana Airlines Seattle — Seoul	11h 40m	Find flight from$500
14:15 — 17:55 +1 day	14:15 — 17:55 UA7292 United Airlines Seattle — Seoul	11h 40m	Find flight from$4927
05:30 — 06:05 +2 days	05:30 — 06:35 AC8801 Air Canada Seattle — Vancouver 4h 45m stop 11:20 — 16:05 AC7 Air Canada Vancouver — Hong Kong 9h 20m stop 01:25 — 06:05 LJ702 Jin Air Hong Kong — Seoul	32h 35m including layover	Find flight from$519
11:36 — 22:00 +2 days	11:36 — 12:48 AS553 Alaska Airlines Seattle — Vancouver 21h 37m stop 10:25 — 12:35 ZG21 Grozny Avia Vancouver — Tokyo 6h 50m stop 19:25 — 22:00 7C1122 Jeju Air Tokyo — Seoul	42h 24m including layover	Find flight from$438
11:36 — 21:15 +2 days	11:36 — 12:48 AS553 Alaska Airlines Seattle — Vancouver 21h 37m stop 10:25 — 12:35 ZG21 Grozny Avia Vancouver — Tokyo 5h 55m stop 18:30 — 21:15 ZE604 Lineas Aereas Azteca Tokyo — Seoul	41h 39m including layover	Find flight from$454
13:12 — 14:55 +3 days	13:12 — 14:08 AS2436 Alaska Airlines Seattle — Vancouver 20h 17m stop 10:25 — 12:35 ZG21 Grozny Avia Vancouver — Tokyo 23h 30m stop 12:05 — 14:55 TW242 T'way Airlines Tokyo — Seoul	57h 43m including layover	Find flight from$434
13:12 — 14:35 +3 days	13:12 — 14:08 AS2436 Alaska Airlines Seattle — Vancouver 20h 17m stop 10:25 — 12:35 ZG21 Grozny Avia Vancouver — Tokyo 22h 55m stop 11:30 — 14:35 ZE602 Lineas Aereas Azteca Tokyo — Seoul	57h 23m including layover	Find flight from$441
15:57 — 14:55 +3 days	15:57 — 16:53 AS2033 Alaska Airlines Seattle — Vancouver 17h 32m stop 10:25 — 12:35 ZG21 Grozny Avia Vancouver — Tokyo 23h 30m stop 12:05 — 14:55 TW242 T'way Airlines Tokyo — Seoul	54h 58m including layover	Find flight from$465
15:57 — 14:35 +3 days	15:57 — 16:53 AS2033 Alaska Airlines Seattle — Vancouver 17h 32m stop 10:25 — 12:35 ZG21 Grozny Avia Vancouver — Tokyo 22h 55m stop 11:30 — 14:35 ZE602 Lineas Aereas Azteca Tokyo — Seoul	54h 38m including layover	Find flight from$473
21:40 — 14:30 +3 days	21:40 — 23:58 AS980 Alaska Airlines Seattle — San Jose 11h 42m stop 11:40 — 14:50 ZG29 Grozny Avia San Jose — Tokyo 21h stop 11:50 — 14:30 7C1102 Jeju Air Tokyo — Seoul	48h 50m including layover	Find flight from$468
21:40 — 14:55 +3 days	21:40 — 23:58 AS980 Alaska Airlines Seattle — San Jose 11h 42m stop 11:40 — 14:50 ZG29 Grozny Avia San Jose — Tokyo 21h 15m stop 12:05 — 14:55 TW242 T'way Airlines Tokyo — Seoul	49h 15m including layover	Find flight from$468
22:59 — 14:55 +3 days	22:59 — 23:58 AS2491 Alaska Airlines Seattle — Vancouver 10h 27m stop 10:25 — 12:35 ZG21 Grozny Avia Vancouver — Tokyo 23h 30m stop 12:05 — 14:55 TW242 T'way Airlines Tokyo — Seoul	47h 56m including layover	Find flight from$483
22:59 — 14:35 +3 days	22:59 — 23:58 AS2491 Alaska Airlines Seattle — Vancouver 10h 27m stop 10:25 — 12:35 ZG21 Grozny Avia Vancouver — Tokyo 22h 55m stop 11:30 — 14:35 ZE602 Lineas Aereas Azteca Tokyo — Seoul	47h 36m including layover	Find flight from$490
23:59 — 14:30 +3 days	23:59 — 06:20 HA6734 Hawaiian Airlines Seattle — Houston 3h 55m stop 10:15 — 14:20 ZG15 Grozny Avia Houston — Tokyo 21h 30m stop 11:50 — 14:30 7C1102 Jeju Air Tokyo — Seoul	46h 31m including layover	Find flight from$510
23:59 — 14:55 +3 days	23:59 — 06:20 HA6734 Hawaiian Airlines Seattle — Houston 3h 55m stop 10:15 — 14:20 ZG15 Grozny Avia Houston — Tokyo 21h 45m stop 12:05 — 14:55 TW242 T'way Airlines Tokyo — Seoul	46h 56m including layover	Find flight from$510

Departure	Arrival	Flight Details	Flight Time	Price
		stop stop	including layover	Find flight from$

*Departure and arrival times - local. Updated on May 17, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from Seattle to Seoul depends on and how to choose the most interesting flight option for you.

Distance between Seattle and Seoul is 8336 miles. Time difference between the cities is 5h. Airplanes depart 00:50 to 23:59 from 3 Seattle airports and arrive 00:50 to 23:59 to 3 Seoul airports. Average flight time is 11h 38m.

The fastest flight 11h 20m
Average flight time 11h 38m
The earliest flight 00:50
The latest flight 23:59
Distance 5180 ml

The cheapest months to travel to Seoul are may (from 579 $), june (from 624 $), november (from 642 $).

The most expensive months are december (from 1 269 $), february (from 648 $), january (from 648 $).

What is the lowest airfare Seattle to Seoul?

The cheapest plane ticket found by our users is $434. This airfare is for economy class on one-way AS2436 flight by Alaska Airlines for May 30, 2025 which leaves Seattle-Tacoma Intl in Seattle at 13:12 am and arrives at Seoul Incheon International at 14:55.

Economy class

$434

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Business class

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First class

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Popular Airlines on the Route

The flight Seattle — Seoul is served by 32 regular airlines and 5 low-cost airlines. Most of the flights on this route are operated by Korean Air - 21 departures per week at the price of from $ 554 . And the most expensive tickets are offered by United Airlines airline - from $ 4927.

Direct flights

There are 4 nonstop flights on the route. The fastest direct flight is KE42 by Korean Air takes 11h 20m and the cheapest is AS2436 by Alaska Airlines for $500.

KE - Korean Air

from $554

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OZ - Asiana Airlines

from $500

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UA - United Airlines

from $4927

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See more direct flights

Connecting Flights

There are 997 flights with layovers on the route. The fastest connecting flight is AC8803 by Air Canada takes 14h 5m and the cheapest is AS2436 by Alaska Airlines for $434.

KE - Korean Air

from $789

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OZ - Asiana Airlines

from $772

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JL - Japan Airlines - JAL

from $615

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PR - Philippine Airlines

from $646

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FI - Icelandair

from $899

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UA - United Airlines

from $814

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HU - Hainan Airlines

from $936

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JX - Jambojet

from $729

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BR - EVA Airways Corporation

from $642

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SK - SAS

from $705

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IB - Iberia

from $1198

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WS - WestJet

from $700

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See more connecting flights

Airports

You can fly from Seattle to Seoul from 3 airports (Boeing Field International Airport, Seattle-Tacoma Intl, Kenmore Air Harbor SPB).

Seattle airports

Boeing Field International Airport-BFI

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Seattle-Tacoma Intl-SEA

from $434
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Kenmore Air Harbor SPB-LKE

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Seoul airports

Incheon International-ICN

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Gimpo International-GMP

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Seoul AB-SSN

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Airplanes

There are flights to Seoul from Seattle by 32 airlines that use 1 aircraft brands. They range from huge modern airplanes to small-sized.

Boeing 737-100/200

from $668

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Top Domestic Destinations from Seattle

You may also consider searching for discounted plane tickets to some other popular places from Seattle within United States.

Seattle — Washington D.C.

from $78

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Seattle — Las Vegas

from $62

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Seattle — New York

from $180

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Seattle — Chicago

from $73

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Seattle — Phoenix

from $67

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Seattle — San Diego

from $74

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Seattle — Los Angeles

from $53

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Seattle — Denver

from $243

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Seattle — Dallas

from $72

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Seattle — Boston

from $63

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Top International Destinations from Seattle

Our state-of-the art metasearch will definitely provide you with the best airfare on international flights. We’re proud to partner with many reliable travel suppliers located outside the US what gives us an opportunity to offer the most competitive prices on far destinations.

Seattle — Tokyo

from $77

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Seattle — London

from $70

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Seattle — Vancouver

from $57

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Seattle — Cancun

from $63

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Seattle — Paris

from $66

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Seattle — Toronto

from $64

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Seattle — Calgary

from $76

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Seattle — Mumbai

from $80

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Seattle — Montreal

from $68

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Seattle — Amsterdam

from $64

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How to book a plane ticket yourself?

Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.
To find a plane ticket, please select dates.