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

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

The cheapest flights to Incheon Intl. found within the past 7 days were CA $990 round trip and CA $503 one way. Prices and availability subject to change. Additional terms may apply.

Tue, Sep 22 - Tue, Sep 29
SEA
Seattle
ICN
Seoul
CA $990 Roundtrip, found 2 days ago
CA $990
Roundtrip
found 2 days ago
Select Cathay Pacific flight, departing Tue, Sep 22 from Seattle to Seoul, returning Tue, Sep 29, priced at CA $990 found 2 days ago
Mon, May 11 - Fri, May 29
SEA
Seattle
ICN
Seoul
CA $1,095 Roundtrip, found 2 days ago
CA $1,095
Roundtrip
found 2 days ago
Select Asiana Airlines flight, departing Mon, May 11 from Seattle to Seoul, returning Fri, May 29, priced at CA $1,095 found 2 days ago
Mon, Sep 14 - Mon, Sep 21
SEA
Seattle
ICN
Seoul
CA $1,101 Roundtrip, found 3 days ago
CA $1,101
Roundtrip
found 3 days ago
Select Cathay Pacific flight, departing Mon, Sep 14 from Seattle to Seoul, returning Mon, Sep 21, priced at CA $1,101 found 3 days ago
Mon, Sep 21 - Tue, Sep 29
SEA
Seattle
ICN
Seoul
CA $1,203 Roundtrip, found 4 days ago
CA $1,203
Roundtrip
found 4 days ago
Select China Airlines flight, departing Mon, Sep 21 from Seattle to Seoul, returning Tue, Sep 29, priced at CA $1,203 found 4 days ago
Tue, Sep 22 - Tue, Sep 29
SEA
Seattle
ICN
Seoul
CA $1,210 Roundtrip, found 2 days ago
CA $1,210
Roundtrip
found 2 days ago
Select Air Canada flight, departing Tue, Sep 22 from Seattle to Seoul, returning Tue, Sep 29, priced at CA $1,210 found 2 days ago
Sat, Apr 18 - Mon, May 4
SEA
Seattle
ICN
Seoul
CA $1,236 Roundtrip, found 2 days ago
CA $1,236
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Sat, Apr 18 from Seattle to Seoul, returning Mon, May 4, priced at CA $1,236 found 2 days ago
Mon, Aug 17 - Wed, Sep 16
SEA
Seattle
ICN
Seoul
CA $1,319 Roundtrip, found 20 hours ago
CA $1,319
Roundtrip
found 20 hours ago
Select EVA Airways flight, departing Mon, Aug 17 from Seattle to Seoul, returning Wed, Sep 16, priced at CA $1,319 found 20 hours ago
Sun, Nov 1 - Sun, Nov 22
SEA
Seattle
ICN
Seoul
CA $1,349 Roundtrip, found 6 days ago
CA $1,349
Roundtrip
found 6 days ago
Select Delta flight, departing Sun, Nov 1 from Seattle to Seoul, returning Sun, Nov 22, priced at CA $1,349 found 6 days ago
Sat, Aug 1 - Mon, Aug 31
SEA
Seattle
ICN
Seoul
CA $1,396 Roundtrip, found 8 hours ago
CA $1,396
Roundtrip
found 8 hours ago
Select Korean Air flight, departing Sat, Aug 1 from Seattle to Seoul, returning Mon, Aug 31, priced at CA $1,396 found 8 hours ago
Mon, Apr 20 - Sun, Apr 26
SEA
Seattle
ICN
Seoul
CA $1,492 Roundtrip, found 1 day ago
CA $1,492
Roundtrip
found 1 day ago
Select United flight, departing Mon, Apr 20 from Seattle to Seoul, returning Sun, Apr 26, priced at CA $1,492 found 1 day 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.

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*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.