₩579,700 Cheap Flights from Seoul (ICN) to Seattle (SEA)

View ₩579,700 flight on Sun, Mar 8, 2026Opens 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 to Seattle (ICN-SEA)

Prices were available within the past 7 days and start at ₩579,700 for one-way flights and ₩778,700 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Fri, Dec 19 - Fri, Jan 9
ICN
Seoul
SEA
Seattle
₩778,700 Roundtrip, found 3 days ago
₩778,700
Roundtrip
found 3 days ago
Select Air Canada flight, departing Fri, Dec 19 from Seoul to Seattle, returning Fri, Jan 9, priced at ₩778,700 found 3 days ago
Hawaiian Airlines
Fri, Jan 30 - Sun, Feb 8
ICN
Seoul
SEA
Seattle
₩784,500 Roundtrip, found 11 hours ago
₩784,500
Roundtrip
found 11 hours ago
Select Hawaiian Airlines flight, departing Fri, Jan 30 from Seoul to Seattle, returning Sun, Feb 8, priced at ₩784,500 found 11 hours ago
United
Thu, Jan 29 - Sun, Feb 22
ICN
Seoul
SEA
Seattle
₩839,100 Roundtrip, found 2 days ago
₩839,100
Roundtrip
found 2 days ago
Select United flight, departing Thu, Jan 29 from Seoul to Seattle, returning Sun, Feb 22, priced at ₩839,100 found 2 days ago
Delta
Sat, Mar 7 - Sat, Mar 7
ICN
Seoul
SEA
Seattle
₩900,600 Roundtrip, found 6 days ago
₩900,600
Roundtrip
found 6 days ago
Select Delta flight, departing Sat, Mar 7 from Seoul to Seattle, returning Sat, Mar 7, priced at ₩900,600 found 6 days ago
American Airlines
Mon, Dec 8 - Tue, Feb 10
ICN
Seoul
SEA
Seattle
₩940,500 Roundtrip, found 2 days ago
₩940,500
Roundtrip
found 2 days ago
Select American Airlines flight, departing Mon, Dec 8 from Seoul to Seattle, returning Tue, Feb 10, priced at ₩940,500 found 2 days ago
Alaska Airlines
Fri, Dec 5 - Fri, Dec 26
ICN
Seoul
SEA
Seattle
₩1,004,500 Roundtrip, found 10 hours ago
₩1,004,500
Roundtrip
found 10 hours ago
Select Alaska Airlines flight, departing Fri, Dec 5 from Seoul to Seattle, returning Fri, Dec 26, priced at ₩1,004,500 found 10 hours ago
Korean Air
Mon, Dec 15 - Fri, Feb 6
ICN
Seoul
SEA
Seattle
₩1,071,900 Roundtrip, found 2 days ago
₩1,071,900
Roundtrip
found 2 days ago
Select Korean Air flight, departing Mon, Dec 15 from Seoul to Seattle, returning Fri, Feb 6, priced at ₩1,071,900 found 2 days ago
China Airlines
Sat, Mar 7 - Mon, Mar 9
ICN
Seoul
SEA
Seattle
₩1,167,700 Roundtrip, found 4 days ago
₩1,167,700
Roundtrip
found 4 days ago
Select China Airlines flight, departing Sat, Mar 7 from Seoul to Seattle, returning Mon, Mar 9, priced at ₩1,167,700 found 4 days ago
Philippine Airlines
Tue, Apr 14 - Fri, May 8
ICN
Seoul
SEA
Seattle
₩1,209,600 Roundtrip, found 3 days ago
₩1,209,600
Roundtrip
found 3 days ago
Select Philippine Airlines flight, departing Tue, Apr 14 from Seoul to Seattle, returning Fri, May 8, priced at ₩1,209,600 found 3 days ago
EVA Airways
Sun, Feb 1 - Sun, Feb 8
ICN
Seoul
SEA
Seattle
₩1,342,700 Roundtrip, found 3 days ago
₩1,342,700
Roundtrip
found 3 days ago
Select EVA Airways flight, departing Sun, Feb 1 from Seoul to Seattle, returning Sun, Feb 8, priced at ₩1,342,700 found 3 days ago

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

September is typically the cheapest month to fly

From ₩485,849 - ₩1,352,790 per traveler.

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 center is 20 minutes. Flights from ₩1,593,800
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city center20 min
Flights from ₩1,593,800
Flights from Seoul (ICN) to Seattle (SEA)
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, Ethiopian Airlines, Hawaiian Airlines, Japan Airlines, KLM, Korean Air, Lufthansa, Philippine Airlines, Qatar Airways, Singapore Airlines, Turkish Airlines, United, WestJet
Roundtrip price
₩778,700
Distance
8326 km
Average flight time
-6 hours -57 mins

Incheon to Seattle Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from Incheon to Seattle will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring Seattle.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with ICN to SEA flights that won’t make your bank account wince. Ready to temporarily leave behind Incheon for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to SEA with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

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 ₩778,700. 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.

Explore a world of travel with Expedia

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