Cheap Flights from Seoul (ICN) to Seattle (SEA) from HK$3,085~

View HK$3,085 flight on Thu, 11 Dec 2025Opens in a new window

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

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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$3,085 for one-way flights and HK$3,788 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Tue, 10 Feb - Tue, 17 Feb
ICN
Seoul
SEA
Seattle
HK$3,788 Return, found 5 days ago
HK$3,788
Return
found 5 days ago
Select Air Canada flight, departing Tue, 10 Feb from Seoul to Seattle, returning Tue, 17 Feb, priced at HK$3,788 found 5 days ago
United
Thu, 19 Feb - Sun, 1 Mar
ICN
Seoul
SEA
Seattle
HK$4,222 Return, found 5 days ago
HK$4,222
Return
found 5 days ago
Select United flight, departing Thu, 19 Feb from Seoul to Seattle, returning Sun, 1 Mar, priced at HK$4,222 found 5 days ago
Air Canada
Fri, 12 Dec - Fri, 2 Jan
ICN
Seoul
SEA
Seattle
HK$4,318 Return, found 5 days ago
HK$4,318
Return
found 5 days ago
Select Air Canada flight, departing Fri, 12 Dec from Seoul to Seattle, returning Fri, 2 Jan, priced at HK$4,318 found 5 days ago
Air Canada
Tue, 10 Feb - Tue, 17 Feb
ICN
Seoul
SEA
Seattle
HK$4,348 Return, found 5 days ago
HK$4,348
Return
found 5 days ago
Select Air Canada flight, departing Tue, 10 Feb from Seoul to Seattle, returning Tue, 17 Feb, priced at HK$4,348 found 5 days ago
United
Thu, 19 Feb - Sun, 1 Mar
ICN
Seoul
SEA
Seattle
HK$4,492 Return, found 5 days ago
HK$4,492
Return
found 5 days ago
Select United flight, departing Thu, 19 Feb from Seoul to Seattle, returning Sun, 1 Mar, priced at HK$4,492 found 5 days ago
American Airlines
Fri, 12 Dec - Sat, 3 Jan
ICN
Seoul
SEA
Seattle
HK$5,474 Return, found 5 days ago
HK$5,474
Return
found 5 days ago
Select American Airlines flight, departing Fri, 12 Dec from Seoul to Seattle, returning Sat, 3 Jan, priced at HK$5,474 found 5 days ago
Asiana Airlines
Wed, 25 Mar - Tue, 31 Mar
ICN
Seoul
SEA
Seattle
HK$5,508 Return, found 2 days ago
HK$5,508
Return
found 2 days ago
Select Asiana Airlines flight, departing Wed, 25 Mar from Seoul to Seattle, returning Tue, 31 Mar, priced at HK$5,508 found 2 days ago
Delta
Tue, 10 Feb - Tue, 17 Feb
ICN
Seoul
SEA
Seattle
HK$5,544 Return, found 5 days ago
HK$5,544
Return
found 5 days ago
Select Delta flight, departing Tue, 10 Feb from Seoul to Seattle, returning Tue, 17 Feb, priced at HK$5,544 found 5 days ago
Korean Air
Tue, 17 Mar - Thu, 26 Mar
ICN
Seoul
SEA
Seattle
HK$5,677 Return, just found
HK$5,677
Return
just found
Select Korean Air flight, departing Tue, 17 Mar from Seoul to Seattle, returning Thu, 26 Mar, priced at HK$5,677 just found
EVA Airways
Sat, 25 Apr - Sat, 2 May
ICN
Seoul
SEA
Seattle
HK$7,147 Return, found 6 days ago
HK$7,147
Return
found 6 days ago
Select EVA Airways flight, departing Sat, 25 Apr from Seoul to Seattle, returning Sat, 2 May, priced at HK$7,147 found 6 days 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.

Alternative airports near Seattle

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

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city centre is 20 minutes. Flights from HK$7,318
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city centre20 min
Flights from HK$7,318
Seoul to Seattle route information
Origin airport
Incheon Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Air Canada, All Nippon Airways, American Airlines, Asiana Airlines, Cathay Pacific, China Airlines, Delta, EVA Airways, Japan Airlines, Korean Air, Lufthansa, Singapore Airlines, United
Return price
HK$3,788
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$3,085 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$3,788. 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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