Beginning of main content
Round Trip Icon
Trip Type
Flight 1
Flight 2
Flight 3
Flight 4
Flight 5

Search over 1,000,000 properties worldwide and 550 airlines worldwide.

Search over a million flights, hotels, packages, and more

No Expedia cancellation fee to change or cancel almost any hotel reservation.

Cheap SEA to ICN Flights

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Seattle to Seoul route information

Origin Airport Seattle - Tacoma Intl.
Destination Airport Incheon Intl.
Airlines Serving Aeromexico, Air Canada, American Airlines, Asiana Airlines, British Airways, Cathay Pacific, China Eastern Airlines, China Southern Airlines, Delta, EVA Airways, Emirates, Ethiopian Airlines, Hawaiian Airlines, Japan Airlines, KLM, Korean Air, Qatar Airways, Turkish Airlines, United, Xiamen Airlines
Flight Price $420
Distance 5,204 mi

Seoul

$708.22

Cheap SEA to ICN Flights

  • Question : Which airline has the least delays from Seattle to Seoul?
    Answer : Booking with Delta Air Lines means you will arrive to Seoul pretty close to the time your ticket states. In fact, this timely airline has a 78% average for landing before the plane turns into a pumpkin.
  • Question : How much time do people spend in Seoul?
    Answer : The average time spent in Seoul by travelers from Seattle is 18 days. However long you decide to stay, give yourself plenty of time to see what makes Seoul fantastic.
  • Question : How many flights are there per day from Seattle to Seoul?
    Answer : Of course, the day of the week matters, but on average, four different flight times exist when you fly from SEA to ICN. You won't have as many choices on this route as most other routes departing the United States.
  • Question : Is there a day of the week that has more departure times to choose from than other days?
    Answer : Saturday has the greatest variety of flight times for Seattle to Seoul with five. The day of the week with the least amount of times is Thursday with three departures.
  • Question : How long is the flight from SEA to ICN?
    Answer : Delta Air Lines currently holds the quickest travel time with 11 hours and 44 minutes. For example, you would arrive in Seoul at 4:50 PM KST if you left Seattle at 12:06 PM PDT. Remember, there is a 17-hour time change.
  • Question : Can I change the date of my flight?
    Answer : You sure can and you may save by changing when you take off. The lowest-cost day to fly in March is Friday.
  • Question : What is the cheapest day to fly to Seoul?
    Answer : Mar 18th has bookings (as of Mar 11th) for as little as $413. That comes in 61% below the average price for this route. Saving now gives you more money in your pocket.

Mar 18, 2019

Delayed flight and late baggage

Mar 17, 2019

On to Bangkok

Mar 11, 2019

Staff Seattle went out of their way to help me at each step of the way. Also helped me to change my return. I try to use Asiana for Asia to US. Great in all ways.

Feb 24, 2019

Korean Airlines slow customer service

Feb 12, 2019

Good job

Feb 7, 2019

The food was quite good,and the service was great. On the long flight the movie selection was quite extensive,and made it easier to endure the long flight.

Feb 6, 2019

The food was good, but it could have been better. It was a little inconsistent between airlines. The same goes for the seating, but all in all I would travel with the same airline again.

Feb 5, 2019

Need plug in to charge electronics.

Feb 1, 2019

Korean is a fantastic airlines and I have only had great experiences in the many times I have flown to Asia.

Jan 30, 2019

Korean Air Movie selection is not the best