฿12,725 Cheap Flights from Seoul (ICN) to Seattle (SEA)

View ฿12,725 flight on Thu, 4 Dec 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at ฿12,725 for one-way flights and ฿17,565 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Thu, 20 Nov - Tue, 25 Nov
ICN
Seoul
SEA
Seattle
฿17,565 Return, found 12 hours ago
฿17,565
Return
found 12 hours ago
Select Air Canada flight, departing Thu, 20 Nov from Seoul to Seattle, returning Tue, 25 Nov, priced at ฿17,565 found 12 hours ago
Air Canada
Mon, 10 Nov - Wed, 26 Nov
ICN
Seoul
SEA
Seattle
฿17,690 Return, found 2 days ago
฿17,690
Return
found 2 days ago
Select Air Canada flight, departing Mon, 10 Nov from Seoul to Seattle, returning Wed, 26 Nov, priced at ฿17,690 found 2 days ago
Air Canada
Sat, 8 Nov - Sat, 15 Nov
ICN
Seoul
SEA
Seattle
฿17,935 Return, found 3 days ago
฿17,935
Return
found 3 days ago
Select Air Canada flight, departing Sat, 8 Nov from Seoul to Seattle, returning Sat, 15 Nov, priced at ฿17,935 found 3 days ago
United
Thu, 20 Nov - Tue, 25 Nov
ICN
Seoul
SEA
Seattle
฿20,155 Return, found 12 hours ago
฿20,155
Return
found 12 hours ago
Select United flight, departing Thu, 20 Nov from Seoul to Seattle, returning Tue, 25 Nov, priced at ฿20,155 found 12 hours ago
United
Tue, 14 Apr - Thu, 23 Apr
ICN
Seoul
SEA
Seattle
฿20,270 Return, found 1 day ago
฿20,270
Return
found 1 day ago
Select United flight, departing Tue, 14 Apr from Seoul to Seattle, returning Thu, 23 Apr, priced at ฿20,270 found 1 day ago
American Airlines
Thu, 20 Nov - Tue, 25 Nov
ICN
Seoul
SEA
Seattle
฿20,660 Return, found 12 hours ago
฿20,660
Return
found 12 hours ago
Select American Airlines flight, departing Thu, 20 Nov from Seoul to Seattle, returning Tue, 25 Nov, priced at ฿20,660 found 12 hours ago
Asiana Airlines
Sun, 16 Nov - Tue, 25 Nov
ICN
Seoul
SEA
Seattle
฿21,100 Return, found 12 hours ago
฿21,100
Return
found 12 hours ago
Select Asiana Airlines flight, departing Sun, 16 Nov from Seoul to Seattle, returning Tue, 25 Nov, priced at ฿21,100 found 12 hours ago
Delta
Sun, 16 Nov - Tue, 25 Nov
ICN
Seoul
SEA
Seattle
฿21,260 Return, found 12 hours ago
฿21,260
Return
found 12 hours ago
Select Delta flight, departing Sun, 16 Nov from Seoul to Seattle, returning Tue, 25 Nov, priced at ฿21,260 found 12 hours ago
Korean Air
Sun, 16 Nov - Tue, 25 Nov
ICN
Seoul
SEA
Seattle
฿21,935 Return, found 12 hours ago
฿21,935
Return
found 12 hours ago
Select Korean Air flight, departing Sun, 16 Nov from Seoul to Seattle, returning Tue, 25 Nov, priced at ฿21,935 found 12 hours ago
EVA Airways
Mon, 9 Mar - Sat, 14 Mar
ICN
Seoul
SEA
Seattle
฿30,215 Return, found 19 hours ago
฿30,215
Return
found 19 hours ago
Select EVA Airways flight, departing Mon, 9 Mar from Seoul to Seattle, returning Sat, 14 Mar, priced at ฿30,215 found 19 hours ago

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

September is typically the cheapest month to fly

From ฿10,969 - ฿30,541 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 ฿17,565
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city centre20 min
Flights from ฿17,565

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 ฿17,565. 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 kilometres. 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.

Travel information

Origin airport
Incheon Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Air Canada, All Nippon Airways, American Airlines, Asiana Airlines, Cathay Pacific, Delta, EVA Airways, Emirates, Japan Airlines, Korean Air, Lufthansa, United
Return price
฿17,565
Distance
8326 km
Average flight time
-6 hours -55 mins

Book with confidence

Perfect flights from Seoul to Seattle

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Seoul to Seattle. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Incheon Intl. to Seattle - Tacoma Intl. ticket options cater to your travel preferences, with incredible one-way fares from ฿12,725 and roundtrip prices from ฿17,565. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Seattle - Tacoma Intl. and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in Seattle.
Perfect flights from Seoul to Seattle

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