Cheap Flights from Seoul (ICN) to Seattle (SEA) from HK$3,147~

View HK$3,147 flight on Fri, 30 Jan 2026Opens in a new window

Popular airlines from Incheon Intl. Airport (ICN) to Seattle

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

Prices were available within the past 7 days and start at HK$3,147 for one-way flights and HK$4,388 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Thu, 29 Jan - Wed, 4 Feb
ICN
Seoul
SEA
Seattle
HK$4,388 Return, found 5 days ago
HK$4,388
Return
found 5 days ago
Select Air Canada flight, departing Thu, 29 Jan from Seoul to Seattle, returning Wed, 4 Feb, priced at HK$4,388 found 5 days ago
Air Canada
Fri, 30 Jan - Thu, 5 Feb
ICN
Seoul
SEA
Seattle
HK$4,400 Return, found 3 days ago
HK$4,400
Return
found 3 days ago
Select Air Canada flight, departing Fri, 30 Jan from Seoul to Seattle, returning Thu, 5 Feb, priced at HK$4,400 found 3 days ago
United
Fri, 30 Jan - Thu, 5 Feb
ICN
Seoul
SEA
Seattle
HK$4,460 Return, found 3 days ago
HK$4,460
Return
found 3 days ago
Select United flight, departing Fri, 30 Jan from Seoul to Seattle, returning Thu, 5 Feb, priced at HK$4,460 found 3 days ago
Air Canada
Mon, 16 Mar - Fri, 20 Mar
ICN
Seoul
SEA
Seattle
HK$5,360 Return, found 2 days ago
HK$5,360
Return
found 2 days ago
Select Air Canada flight, departing Mon, 16 Mar from Seoul to Seattle, returning Fri, 20 Mar, priced at HK$5,360 found 2 days ago
Jeju Air
Mon, 16 Mar - Fri, 20 Mar
ICN
Seoul
SEA
Seattle
HK$5,488 Return, found 2 days ago
HK$5,488
Return
found 2 days ago
Select Jeju Air flight, departing Mon, 16 Mar from Seoul to Seattle, returning Fri, 20 Mar, priced at HK$5,488 found 2 days ago
Delta
Thu, 29 Jan - Wed, 4 Feb
ICN
Seoul
SEA
Seattle
HK$6,328 Return, found 5 days ago
HK$6,328
Return
found 5 days ago
Select Delta flight, departing Thu, 29 Jan from Seoul to Seattle, returning Wed, 4 Feb, priced at HK$6,328 found 5 days ago
Korean Air
Sun, 1 Feb - Sat, 7 Feb
ICN
Seoul
SEA
Seattle
HK$6,340 Return, found 1 day ago
HK$6,340
Return
found 1 day ago
Select Korean Air flight, departing Sun, 1 Feb from Seoul to Seattle, returning Sat, 7 Feb, priced at HK$6,340 found 1 day ago
China Airlines
Thu, 2 Jul - Mon, 27 Jul
ICN
Seoul
SEA
Seattle
HK$7,067 Return, found 1 hour ago
HK$7,067
Return
found 1 hour ago
Select China Airlines flight, departing Thu, 2 Jul from Seoul to Seattle, returning Mon, 27 Jul, priced at HK$7,067 found 1 hour ago
Delta
Sun, 1 Feb - Sat, 7 Feb
ICN
Seoul
SEA
Seattle
HK$7,100 Return, found 1 day ago
HK$7,100
Return
found 1 day ago
Select Delta flight, departing Sun, 1 Feb from Seoul to Seattle, returning Sat, 7 Feb, priced at HK$7,100 found 1 day ago
EVA Airways
Tue, 8 Sept - Mon, 21 Sept
ICN
Seoul
SEA
Seattle
HK$7,143 Return, found 19 hours ago
HK$7,143
Return
found 19 hours ago
Select EVA Airways flight, departing Tue, 8 Sept from Seoul to Seattle, returning Mon, 21 Sept, priced at HK$7,143 found 19 hours ago

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

October is typically the cheapest month to fly

From HK$2,622 - HK$7,409 per traveller.
Seoul to Seattle route information
Origin airport
Incheon Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Air Canada, American Airlines, Asiana Airlines, Cathay Pacific, China Airlines, Delta, EVA Airways, Emirates, Japan Airlines, Korean Air, Lufthansa, United, WestJet
Return price
HK$4,388
Distance
8326 km
Average flight time
-6 hours -57 mins

Flights from Incheon to Seattle

Book cheap flights from Incheon (ICN) to Seattle (SEA) 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 Incheon (ICN) to Seattle (SEA) 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 Incheon (ICN) to Seattle (SEA) trip. Call us at 3077-4857 (direct number - 24 hours day for English).

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

If you would like to book flights to Seattle more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Seattle is HK$3,147 now!

 

Frequently asked questions

How much is a flight from Seoul–Incheon Intl. Airport to Sea-Tac Airport?
Start packing your bags, because round-trip flights from Seoul–Incheon Intl. Airport to SEA start from HK$4,388. That's based on fares listed within the last 7 days on Expedia for flights departing within the next year. Prices can go up quickly, so book today to score the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Seoul–Incheon Intl. Airport to Seattle - Tacoma Intl. Airport (SEA)?
Each air carrier has its own terms and conditions. If you decide to cancel your escape, head to our Customer Service Portal.
How do I find cheap flights from Seoul–Incheon Intl. Airport to Seattle - Tacoma Intl. Airport (SEA) 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 Seoul–Incheon Intl. Airport to Sea-Tac Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from ICN to Sea-Tac Airport?
The distance is around 8,400 kilometers. Neck pillow? Check. Warm clothes? Check. We recommend you pack all the essentials for this long-haul South Korea to SeaTac flight.
Which airlines fly direct from ICN to SEA?
With 39 flights every month operating from ICN to SEA, Delta Air Lines (DL) is a top choice. Another airline operating on this route is Korean Air (KE). You'll have 21 flights every month to take your pick of.
Are Seoul–Incheon Intl. Airport to SEA flight tickets cheaper when they're purchased at the last minute?
Booking last minute from Incheon Airport to Sea-Tac Airport can be hit-or-miss. You may be able to score a bargain, but you could also completely miss out! If you'd prefer to start your travel planning ahead of time, Expedia compares flight deals up to 12 months in advance. Just keep in mind that not all airlines advertise their prices so far in advance. Our suggestion? Check back often as prices are updated regularly.

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