Korean Air Seattle to Seoul Flights

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Best Airfare Price Calendar Flights Schedule

Cheapflightsplus.com will find cheap Korean Air flights from Seattle to Seoul. Compare airline ticket prices and book air tickets starting from $426 from trusted online travel agencies, web sites and directly from airlines. Check flights schedule of Korean Air, arrivals and departure details below.

Find Cheap Airfare Seattle (WA) — Seoul by Korean Air

To find cheap tickets choose a day of your departure with attractive price on the graph below and click «Find flights». For round trip flights please click «Check prices for return flight». The cheapest airfare is in june: one-way - $426, two-way – $731.

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Cheap Flights from Seattle to Seoul by Korean Air

Look at the list of plane tickets for the most popular direct and connecting flights by Korean Air, their prices start from $426. The fastest nonstop flight takes 11h 20m. The fastest connecting flight — 16h.

Price	Departure	Arrival	Flight Time	Airline	Flight
from $475 Find flight	1:20 pm Seattle Seattle-Tacoma Intl	4:40 pm+1 день Seoul Incheon International	11h 20m	Korean Air	KE42
from $507 Find flight	12:55 pm Seattle Seattle-Tacoma Intl	4:30 pm+1 день Seoul Incheon International	11h 35m	Korean Air	KE5020
from $426 Find flight	7:59 pm Seattle Seattle-Tacoma Intl	5:50 pm+2 дня Seoul Incheon International	29h 51m layover 13h 52m - Los Angeles	Korean Air	KE6101 KE18
from $426 Find flight	8:00 am Seattle Seattle-Tacoma Intl	5:00 am+2 дня Seoul Incheon International	29h 0m layover 12h 50m - Los Angeles	Korean Air	KE6107 KE12
from $431 Find flight	2:00 pm Seattle Seattle-Tacoma Intl	5:50 pm+2 дня Seoul Incheon International	35h 50m layover 19h 53m - Los Angeles	Korean Air	KE3455 KE18
from $558 Find flight	5:44 pm Seattle Seattle-Tacoma Intl	4:30 am+2 дня Seoul Incheon International	18h 46m layover 3h 20m - Los Angeles	Korean Air	KE7270 KE12
from $558 Find flight	2:30 pm Seattle Seattle-Tacoma Intl	4:30 am+2 дня Seoul Incheon International	22h 0m layover 6h 36m - Los Angeles	Korean Air	KE3455 KE12
from $559 Find flight	7:00 am Seattle Seattle-Tacoma Intl	5:20 pm+1 день Seoul Incheon International	18h 20m layover 2h 40m - Los Angeles	Korean Air	KE6025 KE18
from $559 Find flight	7:15 am Seattle Seattle-Tacoma Intl	5:20 pm+1 день Seoul Incheon International	18h 5m layover 3h 32m - San Francisco	Korean Air	KE3083 KE24
from $561 Find flight	8:00 am Seattle Seattle-Tacoma Intl	5:20 pm+1 день Seoul Incheon International	17h 20m layover 1h 41m - Los Angeles	Korean Air	KE6107 KE18
from $565 Find flight	8:08 am Seattle Seattle-Tacoma Intl	5:20 pm+1 день Seoul Incheon International	17h 12m layover 2h 38m - San Francisco	Korean Air	KE6097 KE24
from $596 Find flight	8:08 am Seattle Seattle-Tacoma Intl	5:20 pm+1 день Seoul Incheon International	17h 12m layover 2h 18m - San Francisco	Korean Air	KE6115 KE24
from $624 Find flight	7:20 am Seattle Seattle-Tacoma Intl	5:20 pm+1 день Seoul Incheon International	18h 0m layover 2h 19m - Los Angeles	Korean Air	KE7232 KE18
from $627 Find flight	3:42 pm Seattle Seattle-Tacoma Intl	4:40 am+2 дня Seoul Incheon International	20h 58m layover 5h 34m - Las Vegas	Korean Air	KE6099 KE6
from $627 Find flight	6:55 pm Seattle Seattle-Tacoma Intl	4:30 am+2 дня Seoul Incheon International	17h 35m layover 2h 8m - Los Angeles	Korean Air	KE6103 KE12
from $660 Find flight	5:35 pm Seattle Seattle-Tacoma Intl	4:40 am+2 дня Seoul Incheon International	19h 5m layover 3h 39m - Las Vegas	Korean Air	KE6798 KE6

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*Departure and arrival times are local. Prices are for one-way flights. Information refreshed on 06/08/2025

Korean Air Flight Schedule Seattle to Seoul

Below is a detailed 2025 flight schedule for today, tomorrow and all other days. It may vary depending on season and a day of the week of your desired trip. We recommend booking your itinerary at least 2 weeks prior your travel to get the best price and availability by the airline.

Departure	Flight Details	Flight Time	Price
12:55 pm — 4:30 pm +1 day	12:55 pm — 4:30 pm KE5020 Korean Air Seattle — Seoul	11h 35m	Find flight from$507
1:20 pm — 4:40 pm +1 day	1:20 pm — 4:40 pm KE42 Korean Air Seattle — Seoul	11h 20m	Find flight from$475
10:00 am — 7:00 pm +1 day	8:25 am — 11:40 am KE7866 Korean Air Seattle — Honolulu 1h 7m stop 1:45 pm — 7:00 pm KE7896 Korean Air Honolulu — Seoul	17h including layover	Find flight from$3183
12:25 pm — 4:30 am +2 days	12:25 pm — 3:14 pm KE7255 Korean Air Seattle — Los Angeles 8h 36m stop 11:50 pm — 4:30 am KE12 Korean Air Los Angeles — Seoul	24h 5m including layover	Find flight from$706
1:13 pm — 4:10 am +2 days	1:12 pm — 2:08 pm KE6155 Korean Air Seattle — Vancouver 10h 47m stop 0:55 am — 4:30 am KE76 Korean Air Vancouver — Seoul	22h 57m including layover	Find flight from$1014
2:00 pm — 5:50 pm +2 days	2:00 pm — 4:47 pm KE3455 Korean Air Seattle — Los Angeles 19h 53m stop 12:40 pm — 5:50 pm KE18 Korean Air Los Angeles — Seoul	35h 50m including layover	Find flight from$431
2:30 pm — 4:30 am +2 days	2:25 pm — 5:15 pm KE3455 Korean Air Seattle — Los Angeles 6h 36m stop 11:50 pm — 5:00 am KE12 Korean Air Los Angeles — Seoul	22h including layover	Find flight from$558
3:42 pm — 4:40 am +2 days	2:48 pm — 5:19 pm KE6099 Korean Air Seattle — Las Vegas 5h 34m stop 11:50 pm — 4:40 am KE6 Korean Air Las Vegas — Seoul	20h 58m including layover	Find flight from$627
3:45 pm — 4:40 am +2 days	3:30 pm — 6:09 pm KE3049 Korean Air Seattle — Las Vegas 5h 30m stop 11:50 pm — 4:40 am KE6 Korean Air Las Vegas — Seoul	20h 55m including layover	Find flight from$627
4:59 pm — 4:40 am +2 days	4:59 pm — 7:34 pm KE6109 Korean Air Seattle — Las Vegas 4h 16m stop 11:50 pm — 4:40 am KE6 Korean Air Las Vegas — Seoul	19h 41m including layover	Find flight from$627
5:35 pm — 4:40 am +2 days	5:35 pm — 8:11 pm KE6798 Korean Air Seattle — Las Vegas 3h 39m stop 11:50 pm — 4:40 am KE6 Korean Air Las Vegas — Seoul	19h 5m including layover	Find flight from$660
5:44 pm — 4:30 am +2 days	5:44 pm — 8:30 pm KE7270 Korean Air Seattle — Los Angeles 3h 20m stop 11:50 pm — 5:00 am KE12 Korean Air Los Angeles — Seoul	18h 46m including layover	Find flight from$558
6:55 pm — 4:30 am +2 days	6:55 pm — 9:42 pm KE6103 Korean Air Seattle — Los Angeles 2h 8m stop 11:50 pm — 5:00 am KE12 Korean Air Los Angeles — Seoul	17h 35m including layover	Find flight from$627
7:00 am — 5:20 pm +1 day	7:00 am — 9:45 am KE6025 Korean Air Seattle — Los Angeles 2h 40m stop 12:30 pm — 5:50 pm KE18 Korean Air Los Angeles — Seoul	18h 20m including layover	Find flight from$559
7:59 pm — 5:50 pm +2 days	7:59 pm — 10:48 pm KE6101 Korean Air Seattle — Los Angeles 13h 52m stop 12:40 pm — 5:50 pm KE18 Korean Air Los Angeles — Seoul	29h 51m including layover	Find flight from$426
8:00 am — 5:00 am +2 days	8:00 am — 11:00 am KE6107 Korean Air Seattle — Los Angeles 12h 50m stop 11:50 pm — 5:00 am KE12 Korean Air Los Angeles — Seoul	29h including layover	Find flight from$426
8:00 am — 5:20 pm +1 day	8:00 am — 10:49 am KE6107 Korean Air Seattle — Los Angeles 1h 41m stop 12:30 pm — 5:20 pm KE18 Korean Air Los Angeles — Seoul	17h 20m including layover	Find flight from$561
9:15 pm — 6:45 pm +2 days	9:15 pm — 11:50 pm KE6154 Korean Air Seattle — Calgary 16h 3m stop 3:55 pm — 6:45 pm KE5008 Korean Air Calgary — Seoul	29h 30m including layover	Find flight from$12675

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

*Departure and arrival times are local. Last updated on 06/08/2025

Flight Information

There are 2 flights by Korean Air from Seattle to Seoul every week with departures from Seattle-Tacoma Intl, Boeing Field International Airport, Kenmore Air Harbor SPB. All flights arrive at Incheon International, Gimpo International, Seoul AB.

Departures start from 10:00 am to 9:15 pm. Nonstop flight is 11h 20m. The time difference between Seattle and Seoul is 5h.

The fastest flight 11h 20m
Average flight time 11h 28m
The earliest flight 10:00 am
The latest flight 9:15 pm
Distance 5180 ml

The cheapest months for traveling to Seoul are september (from 568 $), august (from 634 $), july (from 635 $).

The most expensive and popular months are october (from 1 372 $), december (from 1 324 $), june (from 997 $).

The cheapest flight by Korean Air that our users were able to find is $426. This airfare is economy class on one-way KE6101 flight for September 27, 2025 leaving Seattle-Tacoma Intl in Seattle at 7:59 pm, it includes all taxes and additional fees.

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Korean Air Airplanes on the Route

List of the most popular Korean Air airplanes flying from Seattle to Seoul:

Other Popular Airlines on the Route

Besides Korean Air there are other 21 airline carriers between Seattle and Seoul. Please review schedules and prices from the most popular airlines to find the best airfare deals from Seattle to Seoul.

Nonstop flights

There are 6 direct flights every day from Seattle. Airlines and fares are below:

OZ - Asiana Airlines

from $462

Find
AS - Alaska Airlines

from $420

Find
HA - Hawaiian Airlines

from $417

Find
UA - United Airlines

from $4951

Find

See more direct flights

Connecting Flights

List of flights with layovers (1 and more stops):

OZ - Asiana Airlines

from $615

Find
QR - Qatar Airways

from $648

Find
AC - Air Canada

from $332

Find
PR - Philippine Airlines

from $468

Find
JL - Japan Airlines - JAL

from $474

Find
CI - China Airlines

from $426

Find
SY - Sun Country Airlines

from $483

Find
UA - United Airlines

from $549

Find
HU - Hainan Airlines

from $408

Find
JX - Jambojet

from $422

Find
BR - EVA Airways Corporation

from $438

Find

See more connecting flights

How to book an air ticket yourself?

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