Cheap Flights from Seattle (SEA) to Seoul (ICN) from HK$3,452~

View HK$3,452 flight on Wed, 11 Feb 2026Opens in a new window

Popular airlines from Seattle to Seoul (ICN-Incheon Intl.)

  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 35% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

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

Prices were available within the past 7 days and start at HK$3,452 for one-way flights and HK$6,325 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Thu, 8 Jan - Thu, 22 Jan
SEA
Seattle
ICN
Seoul
HK$6,325 Return, found 3 days ago
HK$6,325
Return
found 3 days ago
Select Air Canada flight, departing Thu, 8 Jan from Seattle to Seoul, returning Thu, 22 Jan, priced at HK$6,325 found 3 days ago
Air Canada
Mon, 2 Feb - Mon, 9 Feb
SEA
Seattle
ICN
Seoul
HK$6,457 Return, found 1 day ago
HK$6,457
Return
found 1 day ago
Select Air Canada flight, departing Mon, 2 Feb from Seattle to Seoul, returning Mon, 9 Feb, priced at HK$6,457 found 1 day ago
Air Canada
Thu, 8 Jan - Thu, 22 Jan
SEA
Seattle
ICN
Seoul
HK$6,635 Return, found 3 days ago
HK$6,635
Return
found 3 days ago
Select Air Canada flight, departing Thu, 8 Jan from Seattle to Seoul, returning Thu, 22 Jan, priced at HK$6,635 found 3 days ago
Air Canada
Sun, 1 Feb - Sun, 8 Feb
SEA
Seattle
ICN
Seoul
HK$6,715 Return, found 2 days ago
HK$6,715
Return
found 2 days ago
Select Air Canada flight, departing Sun, 1 Feb from Seattle to Seoul, returning Sun, 8 Feb, priced at HK$6,715 found 2 days ago
Delta
Thu, 5 Feb - Mon, 9 Feb
SEA
Seattle
ICN
Seoul
HK$6,885 Return, found 1 day ago
HK$6,885
Return
found 1 day ago
Select Delta flight, departing Thu, 5 Feb from Seattle to Seoul, returning Mon, 9 Feb, priced at HK$6,885 found 1 day ago
Delta
Mon, 2 Feb - Mon, 9 Feb
SEA
Seattle
ICN
Seoul
HK$6,887 Return, found 1 day ago
HK$6,887
Return
found 1 day ago
Select Delta flight, departing Mon, 2 Feb from Seattle to Seoul, returning Mon, 9 Feb, priced at HK$6,887 found 1 day ago
Delta
Tue, 20 Jan - Mon, 26 Jan
SEA
Seattle
ICN
Seoul
HK$6,889 Return, found 5 days ago
HK$6,889
Return
found 5 days ago
Select Delta flight, departing Tue, 20 Jan from Seattle to Seoul, returning Mon, 26 Jan, priced at HK$6,889 found 5 days ago
Korean Air
Mon, 2 Feb - Mon, 9 Feb
SEA
Seattle
ICN
Seoul
HK$6,894 Return, found 1 day ago
HK$6,894
Return
found 1 day ago
Select Korean Air flight, departing Mon, 2 Feb from Seattle to Seoul, returning Mon, 9 Feb, priced at HK$6,894 found 1 day ago
Asiana Airlines
Thu, 5 Feb - Mon, 9 Feb
SEA
Seattle
ICN
Seoul
HK$6,899 Return, found 1 day ago
HK$6,899
Return
found 1 day ago
Select Asiana Airlines flight, departing Thu, 5 Feb from Seattle to Seoul, returning Mon, 9 Feb, priced at HK$6,899 found 1 day ago
United
Thu, 5 Feb - Mon, 9 Feb
SEA
Seattle
ICN
Seoul
HK$6,929 Return, found 1 day ago
HK$6,929
Return
found 1 day ago
Select United flight, departing Thu, 5 Feb from Seattle to Seoul, returning Mon, 9 Feb, priced at HK$6,929 found 1 day ago

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

November is typically the cheapest month to fly

From HK$5,455 - HK$6,569 per traveller.

Alternative airports near Seoul

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Incheon Intl. ICN. Cheapest option available. Average driving time to city centre is 47 minutes. Flights from HK$9,345
ICN
Incheon Intl.
Cheapest
Average driving time to city centre47 min
Flights from HK$9,345

Frequently asked questions

How much is a flight from SEA to Incheon Airport?
The lowest price advertised for a round-trip flight from SEA to ICN is HK$6,325. But you better get a move on. This price is based on fares available within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Sea-Tac Airport to Incheon Intl. Airport (ICN)?
The majority of flights can be canceled online, but whether or not you incur a fee differs between airlines. If you do have to cancel your break, follow the instructions in the Customer Service Portal.
How do I find cheap flights from Seattle - Tacoma Intl. Airport (SEA) to Incheon Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for SEA to ICN flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Sea-Tac Airport to Incheon Intl. Airport (ICN)?
SeaTac to South Korea is around 8,400 kilometers, so get ready to spend quite a while in the air. Don't forget to pack all the essentials, from your eye mask to your earphones. Throw in a few snacks to munch on throughout your journey too.
Which airlines fly direct from SEA to Incheon Intl. Airport (ICN)?
A leading airline that flies from Seattle - Tacoma Intl. Airport (SEA) to Incheon Airport is Delta Air Lines (DL). It offers 39 flights a month. Offering 21 flights every month on this route, Korean Air (KE) is another good option.
Are Sea-Tac Airport to Incheon Airport flight tickets cheaper when they're purchased at the last minute?
Flight tickets from Seattle - Tacoma Intl. Airport (SEA) to ICN are available up to a year before departure on Expedia. And although you may pick up fantastic last-minute deals, it's not something you should count on. Also, booking your flights ahead of time means you'll have more choices — and you can avoid landing the dreaded middle seat! We're constantly updating our fares to bring you the biggest bargains, so keep checking in for all the latest specials.

Travel information

0
Origin airport
Seattle - Tacoma Intl.
Destination airport
Incheon Intl.
Return price
HK$6,325
Distance
8326 km

Book with confidence

Flights from Seattle to Incheon

Book cheap flights from Seattle (SEA) to Incheon (ICN) on Expedia.com.hk. Find the best flight deals to destinations around the world for your next leisure or business travel on Expedia.com.hk.

Search for flights from Seattle (SEA) to Incheon (ICN) to find great flight deals suitable to your travel date and time. Expedia.com.hk flight booking search engine is simple to use and looking for cheap flights is as easy as a click of a mouse or on your mobile devices.

Be assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Seattle (SEA) to Incheon (ICN) trip. Call us at 3077-4857 (direct number - 24 hours day for English).

Save more when combine your Incheon flight with a hotel for a package deal! Discover additional savings by booking in advance. Now you can find activities in Incheon and things to do in Incheon for your perfect vacation with Expedia Thing to Do.

If you would like to book flights to Incheon more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Incheon is HK$3,452 now!

 

Flights from Seattle to Incheon

Explore a world of travel with Expedia

*Available to Expedia members.