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

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

Find The Best Dates To Fly

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

The cheapest flights to Incheon Intl. found within the past 7 days were CA $1,061 round trip and CA $557 one way. Prices and availability subject to change. Additional terms may apply.

Sun, Sep. 28 - Sun, Oct. 12
SEA
Seattle
ICN
Seoul
CA $1,061 Roundtrip, found 6 days ago
CA $1,061
Roundtrip
found 6 days ago
Select Air Canada flight, departing Sun, Sep. 28 from Seattle to Seoul, returning Sun, Oct. 12, priced at CA $1,061 found 6 days ago
Thu, Sep. 4 - Wed, Sep. 10
SEA
Seattle
ICN
Seoul
CA $1,061 Roundtrip, found 4 days ago
CA $1,061
Roundtrip
found 4 days ago
Select Air Canada flight, departing Thu, Sep. 4 from Seattle to Seoul, returning Wed, Sep. 10, priced at CA $1,061 found 4 days ago
Sun, Sep. 28 - Sun, Oct. 12
SEA
Seattle
ICN
Seoul
CA $1,156 Roundtrip, found 6 days ago
CA $1,156
Roundtrip
found 6 days ago
Select Asiana Airlines flight, departing Sun, Sep. 28 from Seattle to Seoul, returning Sun, Oct. 12, priced at CA $1,156 found 6 days ago
Tue, Oct. 7 - Sun, Oct. 19
SEA
Seattle
ICN
Seoul
CA $1,157 Roundtrip, found 5 days ago
CA $1,157
Roundtrip
found 5 days ago
Select Korean Air flight, departing Tue, Oct. 7 from Seattle to Seoul, returning Sun, Oct. 19, priced at CA $1,157 found 5 days ago
Sun, Oct. 26 - Thu, Oct. 30
SEA
Seattle
ICN
Seoul
CA $1,157 Roundtrip, found 5 days ago
CA $1,157
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Sun, Oct. 26 from Seattle to Seoul, returning Thu, Oct. 30, priced at CA $1,157 found 5 days ago
Tue, Nov. 4 - Mon, Nov. 10
SEA
Seattle
ICN
Seoul
CA $1,276 Roundtrip, found 11 hours ago
CA $1,276
Roundtrip
found 11 hours ago
Select China Airlines flight, departing Tue, Nov. 4 from Seattle to Seoul, returning Mon, Nov. 10, priced at CA $1,276 found 11 hours ago
Tue, Nov. 4 - Mon, Nov. 10
SEA
Seattle
ICN
Seoul
CA $1,428 Roundtrip, found 11 hours ago
CA $1,428
Roundtrip
found 11 hours ago
Select EVA Airways flight, departing Tue, Nov. 4 from Seattle to Seoul, returning Mon, Nov. 10, priced at CA $1,428 found 11 hours ago
Tue, Mar. 17 - Sat, Mar. 21
SEA
Seattle
ICN
Seoul
CA $1,441 Roundtrip, found 2 days ago
CA $1,441
Roundtrip
found 2 days ago
Select Cathay Pacific flight, departing Tue, Mar. 17 from Seattle to Seoul, returning Sat, Mar. 21, priced at CA $1,441 found 2 days ago
Thu, Sep. 4 - Wed, Sep. 10
SEA
Seattle
ICN
Seoul
CA $1,476 Roundtrip, found 4 days ago
CA $1,476
Roundtrip
found 4 days ago
Select Hainan Airlines flight, departing Thu, Sep. 4 from Seattle to Seoul, returning Wed, Sep. 10, priced at CA $1,476 found 4 days ago
Sun, Sep. 28 - Sun, Oct. 12
SEA
Seattle
ICN
Seoul
CA $1,491 Roundtrip, found 6 days ago
CA $1,491
Roundtrip
found 6 days ago
Select WestJet flight, departing Sun, Sep. 28 from Seattle to Seoul, returning Sun, Oct. 12, priced at CA $1,491 found 6 days ago

Frequently asked questions

Are there direct flights from SEA to Incheon Airport?
Your next grand adventure is on the opposite side of a single flight. You can fly direct from Seattle - Tacoma Intl. Airport (SEA) to Incheon Intl. Airport (ICN) with multiple airlines, including Korean Air and Delta.
What airlines fly from Sea-Tac Airport to Incheon Airport?
There are a number of airlines that fly direct from Seattle - Tacoma Intl. Airport (SEA) to Incheon Intl. Airport (ICN). Korean Air (KE) is one of the most popular, operating at least 30 flights each month. An alternative is Delta (DL), which offers 21 flights every month. The more airlines you consider, the more likely you are to score a terrific deal.
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.

Popular Flight Routes from Seattle (SEA)

Travelers at SEA love to visit these top cities. Roam to the top destinations from Seattle (SEA) today with the cheap prices from Travelocity!

Popular Flight Routes from Seoul (ICN)

Travelers at ICN love to visit these top cities. Roam to the top destinations from Seoul(ICN) today with the cheap prices from Travelocity!

*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.