Cheap Flights From Incheon Intl. (ICN) To Seattle - Tacoma Intl. (SEA)

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

The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were CA $800 round trip and CA $581 one way. Prices and availability subject to change. Additional terms may apply.

Sun, Oct. 12 - Thu, Oct. 16
ICN
Seoul
SEA
Seattle
CA $800 Roundtrip, found 1 day ago
CA $800
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sun, Oct. 12 from Seoul to Seattle, returning Thu, Oct. 16, priced at CA $800 found 1 day ago
Sat, Oct. 11 - Fri, Nov. 28
ICN
Seoul
SEA
Seattle
CA $805 Roundtrip, found 2 days ago
CA $805
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Sat, Oct. 11 from Seoul to Seattle, returning Fri, Nov. 28, priced at CA $805 found 2 days ago
Fri, Sep. 12 - Mon, Sep. 15
ICN
Seoul
SEA
Seattle
CA $815 Roundtrip, found 6 days ago
CA $815
Roundtrip
found 6 days ago
Select Air Canada flight, departing Fri, Sep. 12 from Seoul to Seattle, returning Mon, Sep. 15, priced at CA $815 found 6 days ago
Sat, Oct. 11 - Fri, Nov. 28
ICN
Seoul
SEA
Seattle
CA $825 Roundtrip, found 2 days ago
CA $825
Roundtrip
found 2 days ago
Select Asiana Airlines flight, departing Sat, Oct. 11 from Seoul to Seattle, returning Fri, Nov. 28, priced at CA $825 found 2 days ago
Sat, Oct. 11 - Fri, Nov. 28
ICN
Seoul
SEA
Seattle
CA $848 Roundtrip, found 2 days ago
CA $848
Roundtrip
found 2 days ago
Select Korean Air flight, departing Sat, Oct. 11 from Seoul to Seattle, returning Fri, Nov. 28, priced at CA $848 found 2 days ago
Sun, Oct. 12 - Thu, Oct. 16
ICN
Seoul
SEA
Seattle
CA $1,115 Roundtrip, found 1 day ago
CA $1,115
Roundtrip
found 1 day ago
Select WestJet flight, departing Sun, Oct. 12 from Seoul to Seattle, returning Thu, Oct. 16, priced at CA $1,115 found 1 day ago
Sun, Sep. 21 - Tue, Sep. 30
ICN
Seoul
SEA
Seattle
CA $1,212 Roundtrip, found 6 days ago
CA $1,212
Roundtrip
found 6 days ago
Select China Airlines flight, departing Sun, Sep. 21 from Seoul to Seattle, returning Tue, Sep. 30, priced at CA $1,212 found 6 days ago
Fri, Sep. 12 - Mon, Sep. 15
ICN
Seoul
SEA
Seattle
CA $1,227 Roundtrip, found 6 days ago
CA $1,227
Roundtrip
found 6 days ago
Select EVA Airways flight, departing Fri, Sep. 12 from Seoul to Seattle, returning Mon, Sep. 15, priced at CA $1,227 found 6 days ago
Fri, Sep. 12 - Mon, Sep. 15
ICN
Seoul
SEA
Seattle
CA $1,884 Roundtrip, found 6 days ago
CA $1,884
Roundtrip
found 6 days ago
Select Japan Airlines flight, departing Fri, Sep. 12 from Seoul to Seattle, returning Mon, Sep. 15, priced at CA $1,884 found 6 days ago
Thu, Jul. 17 - Wed, Jul. 30
ICN
Seoul
SEA
Seattle
CA $1,997 Roundtrip, found 18 hours ago
CA $1,997
Roundtrip
found 18 hours ago
Select Philippine Airlines flight, departing Thu, Jul. 17 from Seoul to Seattle, returning Wed, Jul. 30, priced at CA $1,997 found 18 hours ago

Frequently asked questions

Are there direct flights from Incheon Intl. Airport (ICN) to Sea-Tac Airport?
Start your getaway relaxed and calm and head straight to Sea-Tac Airport from Incheon Airport. Korean Air and Delta are among the airlines that offer nonstop services on this route.
What airlines fly from Incheon Intl. Airport (ICN) to SEA?
If you're going to Seattle from Incheon, there are several airlines that have direct flights. One of the most popular is Korean Air (KE), which offers 30 flights every month. It's a good idea to also look into the deals available through Delta (DL). Another well-known airline, it operates 21 flights monthly on the Incheon to Seattle route. Compare the two to pick up the best fare.
What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you're looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you're browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here's the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.