S$511 Cheap Flights from Seoul to Seattle

View S$511 flight on Sun, 21 Dec, 2025Opens in a new window

Popular airlines from Seoul to Seattle, WA (SEA-Seattle - Tacoma Intl.)

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Cheap Flights from Seoul to Seattle (SEL-SEA)

Prices were available within the past 7 days and start at S$511 for one-way flights and S$716 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Fri, 30 Jan - Sat, 21 Feb
ICN
Seoul
SEA
Seattle
S$716 Return, found 1 day ago
S$716
Return
found 1 day ago
Select Air Canada flight, departing Fri, 30 Jan from Seoul to Seattle, returning Sat, 21 Feb, priced at S$716 found 1 day ago
United
Mon, 9 Feb - Fri, 13 Feb
ICN
Seoul
SEA
Seattle
S$817 Return, found 5 days ago
S$817
Return
found 5 days ago
Select United flight, departing Mon, 9 Feb from Seoul to Seattle, returning Fri, 13 Feb, priced at S$817 found 5 days ago
United
Sun, 8 Feb - Fri, 13 Feb
ICN
Seoul
SEA
Seattle
S$861 Return, found 5 days ago
S$861
Return
found 5 days ago
Select United flight, departing Sun, 8 Feb from Seoul to Seattle, returning Fri, 13 Feb, priced at S$861 found 5 days ago
Hawaiian Airlines
Sun, 8 Feb - Fri, 13 Feb
ICN
Seoul
SEA
Seattle
S$885 Return, found 5 days ago
S$885
Return
found 5 days ago
Select Hawaiian Airlines flight, departing Sun, 8 Feb from Seoul to Seattle, returning Fri, 13 Feb, priced at S$885 found 5 days ago
Alaska Airlines
Thu, 25 Dec - Fri, 2 Jan
ICN
Seoul
SEA
Seattle
S$886 Return, found 4 days ago
S$886
Return
found 4 days ago
Select Alaska Airlines flight, departing Thu, 25 Dec from Seoul to Seattle, returning Fri, 2 Jan, priced at S$886 found 4 days ago
Asiana Airlines
Sun, 22 Mar - Sat, 31 Oct
ICN
Seoul
SEA
Seattle
S$915 Return, found 6 days ago
S$915
Return
found 6 days ago
Select Asiana Airlines flight, departing Sun, 22 Mar from Seoul to Seattle, returning Sat, 31 Oct, priced at S$915 found 6 days ago
Korean Air
Sun, 8 Feb - Fri, 13 Feb
ICN
Seoul
SEA
Seattle
S$946 Return, found 5 days ago
S$946
Return
found 5 days ago
Select Korean Air flight, departing Sun, 8 Feb from Seoul to Seattle, returning Fri, 13 Feb, priced at S$946 found 5 days ago
Delta
Sun, 8 Feb - Fri, 13 Feb
ICN
Seoul
SEA
Seattle
S$946 Return, found 5 days ago
S$946
Return
found 5 days ago
Select Delta flight, departing Sun, 8 Feb from Seoul to Seattle, returning Fri, 13 Feb, priced at S$946 found 5 days ago
American Airlines
Thu, 15 Jan - Mon, 19 Jan
ICN
Seoul
SEA
Seattle
S$1,102 Return, found 1 day ago
S$1,102
Return
found 1 day ago
Select American Airlines flight, departing Thu, 15 Jan from Seoul to Seattle, returning Mon, 19 Jan, priced at S$1,102 found 1 day ago
EVA Airways
Tue, 10 Feb - Wed, 18 Feb
ICN
Seoul
SEA
Seattle
S$1,206 Return, found 6 days ago
S$1,206
Return
found 6 days ago
Select EVA Airways flight, departing Tue, 10 Feb from Seoul to Seattle, returning Wed, 18 Feb, priced at S$1,206 found 6 days ago

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

November is typically the cheapest month to fly

From S$437 - S$762 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 S$886
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city centre20 min
Flights from S$886
Seoul to Seattle route information
Origin airport
Incheon Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Air Canada, American Airlines, Asiana Airlines, Cathay Pacific, Delta, Hawaiian Airlines, KLM, Korean Air, Singapore Airlines, United
Return price
S$715
Distance
8326 km

Flights from Incheon to Seattle

When looking for plane tickets from Incheon to Seattle, the ease and convenience of using Expedia simply can’t be beat. With tons of departure points and flights options from the top airline carriers, Expedia gives you the widest array of cheap flights to Seattle. Look for SEL to SEA airfare with the assurance that you have the largest online travel agency working for you.

Expedia lets you search across the largest number of airlines and Seattle flights, which means that you’ll be able to find a great flight deal at the perfect travel date and time. Our simple-to-use booking engine makes looking for terrific bargains easy and hassle-free; just enter your travel dates and departure city, and let Expedia do the rest! Adjust your travel dates and explore connecting flights to find an even better deal on your Incheon Seattle flight!

Browse through dozens of options and rest 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 to Seattle trip. There’s simply no substitute for great prices suited to your travel needs and backed by excellent customer support.

Combine your Seattle flight with a hotel and/or car rental for a package deal designed to save you even more money! Discover additional savings by booking in advance or find a last minute deal. There are tons of ways to save on your flights from Incheon to Seattle with Expedia. Use us as your stop travel destination and have the confidence that you’re getting a bargain!

Frequently asked questions

How much is a flight from Seoul (SEL-All Airports) to Sea-Tac Airport?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price quoted for a round-trip journey between Seoul (SEL-All Airports) and Seattle - Tacoma Intl. Airport (SEA) was S$716. Fares this cheap don't stick around for long, so make sure you book yours ASAP. 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 (SEL-All Airports) to Sea-Tac Airport?
Each air carrier has its own terms and conditions. If you do decide to cancel, follow the easy instructions on our Customer Service Portal.
How do I find cheap flights from Seoul (SEL-All Airports) to 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 (SEL-All Airports) to SEA flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Seoul (SEL-All Airports) to Sea-Tac Airport?
The distance is around 8,400 kilometres, so pack your carry-on bag with whatever you need to make your journey comfortable. Not sure what to take on board your South Korea to SeaTac flight? Earplugs, a sleep mask and a neck pillow are a few essentials.
Which airlines fly direct from Seoul (SEL-All Airports) to Sea-Tac Airport?
Delta Air Lines (DL) is a top choice. It operates 39 flights from Seoul (SEL-All Airports) to SEA each month. You could also have a look at the fares on offer with Korean Air (KE). It operates 21 monthly flights between South Korea and SeaTac.
Are Seoul (SEL-All Airports) to SEA flight tickets cheaper when they're purchased at the last minute?
Last-minute planners can occasionally find a bargain, with some of the cheapest fares from Seoul (SEL-All Airports) to Sea-Tac Airport cropping up a few weeks before the date of departure. If you'd rather plan ahead, Expedia compares and updates the best flight deals continuously — as early as a year in advance in some cases. It does depend on the carrier though, as not all airlines release prices that far in advance.

Explore a world of travel with Expedia

Seoul Airports

Seoul

Incheon Intl. to Seattle
S$715.30
*Available to Expedia members.