€600 Cheap Flights Seoul to Seattle (ICN-SEA)

View €600 flight on Tue, 5 May 2026Opens in a new window

Flight 1

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 €600 for one-way flights and €958 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Sat, 6 Jun - Sat, 13 Jun
ICN
Seoul
SEA
Seattle
€958 Return, found 7 hours ago
€958
Return
found 7 hours ago
Select Air Canada flight, departing Sat, 6 Jun from Seoul to Seattle, returning Sat, 13 Jun, priced at €958 found 7 hours ago
Asiana Airlines
Mon, 18 May - Mon, 1 Jun
ICN
Seoul
SEA
Seattle
€1,002 Return, found 6 days ago
€1,002
Return
found 6 days ago
Select Asiana Airlines flight, departing Mon, 18 May from Seoul to Seattle, returning Mon, 1 Jun, priced at €1,002 found 6 days ago
Air Canada
Sat, 6 Jun - Sat, 13 Jun
ICN
Seoul
SEA
Seattle
€1,026 Return, found 7 hours ago
€1,026
Return
found 7 hours ago
Select Air Canada flight, departing Sat, 6 Jun from Seoul to Seattle, returning Sat, 13 Jun, priced at €1,026 found 7 hours ago
Delta
Sat, 6 Jun - Sat, 13 Jun
ICN
Seoul
SEA
Seattle
€1,032 Return, found 7 hours ago
€1,032
Return
found 7 hours ago
Select Delta flight, departing Sat, 6 Jun from Seoul to Seattle, returning Sat, 13 Jun, priced at €1,032 found 7 hours ago
Korean Air
Sat, 6 Jun - Sat, 13 Jun
ICN
Seoul
SEA
Seattle
€1,040 Return, found 7 hours ago
€1,040
Return
found 7 hours ago
Select Korean Air flight, departing Sat, 6 Jun from Seoul to Seattle, returning Sat, 13 Jun, priced at €1,040 found 7 hours ago
Korean Air
Sat, 6 Jun - Sat, 13 Jun
ICN
Seoul
SEA
Seattle
€1,041 Return, found 7 hours ago
€1,041
Return
found 7 hours ago
Select Korean Air flight, departing Sat, 6 Jun from Seoul to Seattle, returning Sat, 13 Jun, priced at €1,041 found 7 hours ago
Delta
Sat, 6 Jun - Sat, 13 Jun
ICN
Seoul
SEA
Seattle
€1,044 Return, found 7 hours ago
€1,044
Return
found 7 hours ago
Select Delta flight, departing Sat, 6 Jun from Seoul to Seattle, returning Sat, 13 Jun, priced at €1,044 found 7 hours ago
Delta
Sat, 6 Jun - Sat, 13 Jun
ICN
Seoul
SEA
Seattle
€1,046 Return, found 7 hours ago
€1,046
Return
found 7 hours ago
Select Delta flight, departing Sat, 6 Jun from Seoul to Seattle, returning Sat, 13 Jun, priced at €1,046 found 7 hours ago
Delta
Sat, 6 Jun - Sat, 13 Jun
ICN
Seoul
SEA
Seattle
€1,075 Return, found 7 hours ago
€1,075
Return
found 7 hours ago
Select Delta flight, departing Sat, 6 Jun from Seoul to Seattle, returning Sat, 13 Jun, priced at €1,075 found 7 hours ago
WestJet
Sat, 6 Jun - Sat, 13 Jun
ICN
Seoul
SEA
Seattle
€1,275 Return, found 7 hours ago
€1,275
Return
found 7 hours ago
Select WestJet flight, departing Sat, 6 Jun from Seoul to Seattle, returning Sat, 13 Jun, priced at €1,275 found 7 hours ago

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

September is typically the cheapest month to fly

From €333 - €815 per traveller.

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 €958. 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.
Return price
€958
Distance
8326 km
Average flight time
-5 hours -59 mins

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