Korean Air Seattle to Seoul Flights

Return flight: Seoul – Seattle

Cheapflightsplus.com will find cheap Korean Air flights from Seattle to Seoul. Compare airline ticket prices and book air tickets starting from $589 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 march: one-way - $589, two-way – $1010.
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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 Arrival Flight Details Flight Time Price
10:50 am — 4:15 pm
+1 day
10:50 am — 4:15 pm KE5020 Korean Air
Seattle — Seoul
12h 25m
Find flight
from$589
12:00 pm — 5:40 pm
+2 days
11:50 am — 2:40 pm KE7255 Korean Air
Seattle — Los Angeles
19h 59m stop
10:50 am — 5:40 pm KE18 Korean Air
Los Angeles — Seoul
36h 40m
including layover
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from$590
1:34 pm — 5:40 pm
+2 days
1:34 pm — 3:43 pm KE6115 Korean Air
Seattle — San Francisco
19h 57m stop
11:40 am — 5:40 pm KE24 Korean Air
San Francisco — Seoul
35h 6m
including layover
Find flight
from$755
4:59 pm — 4:50 am
+2 days
1:44 pm — 4:32 pm KE6101 Korean Air
Seattle — Los Angeles
2h 57m stop
10:40 pm — 5:10 am KE12 Korean Air
Los Angeles — Seoul
18h 51m
including layover
Find flight
from$589
4:59 pm — 5:40 pm
+2 days
1:44 pm — 4:32 pm KE6101 Korean Air
Seattle — Los Angeles
15h 7m stop
10:50 am — 5:40 pm KE18 Korean Air
Los Angeles — Seoul
31h 41m
including layover
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from$590
9:31 pm — 5:40 pm
+2 days
3:50 pm — 5:59 pm KE6097 Korean Air
Seattle — San Francisco
11h 56m stop
11:40 am — 5:40 pm KE24 Korean Air
San Francisco — Seoul
27h 9m
including layover
Find flight
from$688
*Departure and arrival times are local. Last updated on 02/23/2025

Flight Information

There is 1 flight 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 10:50 am to 9:31 pm. Nonstop flight is 12h 25m. The time difference between Seattle and Seoul is 5h.

  • The fastest flight 12h 25m
  • Average flight time 12h 25m
  • The earliest flight 10:50 am
  • The latest flight 9:31 pm
  • Distance 5180 ml

The cheapest months for traveling to Seoul are november (from 589 $), january (from 633 $), february (from 680 $).

The most expensive and popular months are december (from 1 258 $), february (from 680 $), january (from 633 $).

The cheapest flight by Korean Air that our users were able to find is $589. This airfare is economy class on one-way KE6101 flight for February 21, 2025 leaving Seattle-Tacoma Intl in Seattle at 4:59 pm, it includes all taxes and additional fees.

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Other Popular Airlines on the Route

Besides Korean Air there are other 15 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 1 direct flights every day from Seattle. Airlines and fares are below:

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Connecting Flights

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

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How to book an air ticket yourself?

How to book an air 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 airfare.
  • 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.

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