Cheap Flights from Seattle (SEA) to Seoul (ICN)

Save on Flight Bookings!

Popular airlines from Seattle-Tacoma International Airport (SEA) to Incheon Intl. Airport (ICN)

  • Be in the know

    Get alerts if flight prices drop or rise*
  • Book smarter

    Save on select hotels after you book a flight*
  • Find the right fit

    We search billions of combinations of flights to help you find your next adventure

Find the cheapest month to fly from Seattle (SEA) to Seoul (ICN)

October is typically the cheapest month to fly

From AEDĀ 2,643 - AEDĀ 3,622 per traveler.

Frequently asked questions

How long does it take to fly from Sea-Tac Airport to Incheon Airport?
Asiana Airlines operates a direct flight taking off from Seattle - Tacoma Intl. Airport (SEA) at 2:20PM and landing at ICN at 5:45PM — a total flying time of 11 hours and 25 minutes. Select the seat that's right for you, bring a magazine to keep you amused and the time will fly by.
Is it cheaper to buy a plane ticket from Sea-Tac Airport to Incheon Airport last minute?
Being spontaneous is a fantastic way to discover the world, but it's not always the cleverest way to track down a cheap flight. Consider booking your Sea-Tac Airport to Seoul–Incheon Intl. Airport trip in advance instead of waiting till the last minute. Based on flight pricing and demand studies in 2022, we have found that the best time to book domestic flights is between 28 – 35 days ahead of the departure date, and international flights three to four months in advance. You can unleash your spontaneous side when you get to Seoul–Incheon Intl. Airport!
What airline has the least delays from Sea-Tac Airport to Seoul–Incheon Intl. Airport?
If you'd rather not be stuck at the departure gate for hours — or worse, your trip left in tatters due to a flight delay — travel with Delta Air Lines. Around 61% of its Sea-Tac Airport to Incheon Airport services land on schedule. You can review your flight status before traveling to the airport through the free Expedia App. It'll also provide you with real-time alerts about a bunch of other useful things, such as gate changes, baggage carousel numbers and how to get to your hotel. Think of it as a travel companion that fits in your pocket!
What airports do you fly into for Seoul from Seattle?
From Seattle, you can fly into Seoul through Incheon Intl. Airport (ICN), Gimpo Intl. Airport (GMP) and Suwon (SWU-Suwon Airbase). It's a good idea to check which hub is the right option for you before making your decision. If you pick Incheon Intl. Airport (ICN), it's roughly 48 kilometers west of the downtown area. Use the dough you save when booking your airfare with Expedia to check out the city's well-known attractions, such as Starfield COEX Mall and Lotte Outlets Seoul Station.
What are the most popular departure times for flights from SEA to Seoul–Incheon Intl. Airport?
Between 1:00 PM - 2:00 PM is when you'll find the most Korean Air flights jetting off from Sea-Tac Airport to ICN. Our advice? Get up and away earlier in the day. With air traffic yet to build up around airports, your odds of jumping on a delay-free flight are higher.
Can I change the date of my flight from Sea-Tac Airport to ICN?
Quickly and easily make changes to your Sea-Tac Airport to Seoul–Incheon Intl. Airport trip by logging in to the Expedia Trips portal. But before you make any adjustments, read through the fare conditions in your itinerary to see what the airline will let you do and if change fees apply. Some airlines have a change fee per person, plus any difference in ticket prices. However, if you booked in the last 24 hours, you may be able to cancel for free and arrange new flights. You can also stop by our Customer Service portal for further details and to chat with our Virtual Agent.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Incheon Intl.
Distance
8326 km
Average flight time
27 hours 55 mins