RM1,791 Cheap Flights from Seattle (SEA) to Seoul (ICN)

View RM1,791 flight on Mon, 9 Feb 2026Opens in a new window

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

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Cheap Flights from Seattle to Seoul (SEA-ICN)

Prices were available within the past 7 days and start at RM1,791 for one-way flights and RM3,168 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Thu, 26 Feb - Tue, 31 Mar
SEA
Seattle
ICN
Seoul
RM3,168 Return, found 5 days ago
RM3,168
Return
found 5 days ago
Select Air Canada flight, departing Thu, 26 Feb from Seattle to Seoul, returning Tue, 31 Mar, priced at RM3,168 found 5 days ago
Air Canada
Thu, 26 Feb - Tue, 31 Mar
SEA
Seattle
ICN
Seoul
RM3,223 Return, found 5 days ago
RM3,223
Return
found 5 days ago
Select Air Canada flight, departing Thu, 26 Feb from Seattle to Seoul, returning Tue, 31 Mar, priced at RM3,223 found 5 days ago
United
Thu, 26 Feb - Tue, 31 Mar
SEA
Seattle
ICN
Seoul
RM3,451 Return, found 5 days ago
RM3,451
Return
found 5 days ago
Select United flight, departing Thu, 26 Feb from Seattle to Seoul, returning Tue, 31 Mar, priced at RM3,451 found 5 days ago
Korean Air
Thu, 26 Feb - Tue, 31 Mar
SEA
Seattle
ICN
Seoul
RM3,455 Return, found 5 days ago
RM3,455
Return
found 5 days ago
Select Korean Air flight, departing Thu, 26 Feb from Seattle to Seoul, returning Tue, 31 Mar, priced at RM3,455 found 5 days ago
United
Thu, 26 Feb - Tue, 31 Mar
SEA
Seattle
ICN
Seoul
RM3,474 Return, found 5 days ago
RM3,474
Return
found 5 days ago
Select United flight, departing Thu, 26 Feb from Seattle to Seoul, returning Tue, 31 Mar, priced at RM3,474 found 5 days ago
American Airlines
Thu, 26 Feb - Tue, 31 Mar
SEA
Seattle
ICN
Seoul
RM3,484 Return, found 5 days ago
RM3,484
Return
found 5 days ago
Select American Airlines flight, departing Thu, 26 Feb from Seattle to Seoul, returning Tue, 31 Mar, priced at RM3,484 found 5 days ago
American Airlines
Thu, 26 Feb - Tue, 31 Mar
SEA
Seattle
ICN
Seoul
RM3,507 Return, found 5 days ago
RM3,507
Return
found 5 days ago
Select American Airlines flight, departing Thu, 26 Feb from Seattle to Seoul, returning Tue, 31 Mar, priced at RM3,507 found 5 days ago
Delta
Mon, 9 Feb - Fri, 13 Feb
SEA
Seattle
ICN
Seoul
RM3,603 Return, found 4 days ago
RM3,603
Return
found 4 days ago
Select Delta flight, departing Mon, 9 Feb from Seattle to Seoul, returning Fri, 13 Feb, priced at RM3,603 found 4 days ago
Delta
Mon, 9 Feb - Fri, 13 Feb
SEA
Seattle
ICN
Seoul
RM3,607 Return, found 4 days ago
RM3,607
Return
found 4 days ago
Select Delta flight, departing Mon, 9 Feb from Seattle to Seoul, returning Fri, 13 Feb, priced at RM3,607 found 4 days ago
Korean Air
Mon, 9 Feb - Fri, 13 Feb
SEA
Seattle
ICN
Seoul
RM3,611 Return, found 4 days ago
RM3,611
Return
found 4 days ago
Select Korean Air flight, departing Mon, 9 Feb from Seattle to Seoul, returning Fri, 13 Feb, priced at RM3,611 found 4 days ago
Seattle to Seoul route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Incheon Intl.
Return price
RM3,168
Distance
8326 km
Average flight time
29 hours 1 min

Perfect flights from Seattle to Seoul

Your Journey from Seattle to Seoul

Start your unforgettable journey with Expedia. Our broad selection of flights from Seattle to Seoul caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including Air Canada, Delta, United, Korean Air, American Airlines. Our selection of flights from Seattle - Tacoma Intl. to Incheon Intl. caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

Maximizing Value with Seattle to Seoul Flights

Experience the joy of finding cheap flights from Seattle - Tacoma Intl. to Incheon Intl. that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from RM1,791 and roundtrip prices from RM3,168*.
 

Pre-Flight Essentials

Ensure a smooth journey from Seattle to Seoul with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant Seoul

Picture yourself stepping off the plane in Seoul and immersing yourself in the unique atmosphere of . From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your Seattle to Seoul Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from Seattle to Seoul.
 

Beyond the Flight – Exploring Seoul

With Expedia, your adventure extends beyond the flight. Explore Seoul at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from Seattle to Seoul with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from Seattle to Seoul with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.

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 RM3,168. 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 cancelled 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 kilometres, 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.

Explore a world of travel with Expedia

*Available to Expedia members.