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 $989 round trip and CA $504 one way. Prices and availability subject to change. Additional terms may apply.

Tue, Nov 3 - Wed, Nov 11
SEA
Seattle
ICN
Seoul
CA $989 Roundtrip, found 5 days ago
CA $989
Roundtrip
found 5 days ago
Select Cathay Pacific flight, departing Tue, Nov 3 from Seattle to Seoul, returning Wed, Nov 11, priced at CA $989 found 5 days ago
Wed, Sep 23 - Tue, Oct 20
SEA
Seattle
ICN
Seoul
CA $990 Roundtrip, found 5 days ago
CA $990
Roundtrip
found 5 days ago
Select Cathay Pacific flight, departing Wed, Sep 23 from Seattle to Seoul, returning Tue, Oct 20, priced at CA $990 found 5 days ago
Wed, May 6 - Mon, May 11
SEA
Seattle
ICN
Seoul
CA $993 Roundtrip, found 5 days ago
CA $993
Roundtrip
found 5 days ago
Select Cathay Pacific flight, departing Wed, May 6 from Seattle to Seoul, returning Mon, May 11, priced at CA $993 found 5 days ago
Sat, Apr 18 - Fri, May 1
SEA
Seattle
ICN
Seoul
CA $1,091 Roundtrip, found 5 hours ago
CA $1,091
Roundtrip
found 5 hours ago
Select Alaska Airlines flight, departing Sat, Apr 18 from Seattle to Seoul, returning Fri, May 1, priced at CA $1,091 found 5 hours ago
Mon, Apr 20 - Sun, May 10
SEA
Seattle
ICN
Seoul
CA $1,093 Roundtrip, found 1 day ago
CA $1,093
Roundtrip
found 1 day ago
Select Korean Air flight, departing Mon, Apr 20 from Seattle to Seoul, returning Sun, May 10, priced at CA $1,093 found 1 day ago
Mon, May 11 - Thu, Jun 25
SEA
Seattle
ICN
Seoul
CA $1,111 Roundtrip, found 2 hours ago
CA $1,111
Roundtrip
found 2 hours ago
Select Air Canada flight, departing Mon, May 11 from Seattle to Seoul, returning Thu, Jun 25, priced at CA $1,111 found 2 hours ago
Sat, Apr 18 - Fri, May 1
SEA
Seattle
ICN
Seoul
CA $1,206 Roundtrip, found 5 hours ago
CA $1,206
Roundtrip
found 5 hours ago
Select Asiana Airlines flight, departing Sat, Apr 18 from Seattle to Seoul, returning Fri, May 1, priced at CA $1,206 found 5 hours ago
Sun, Mar 22 - Wed, Apr 1
SEA
Seattle
ICN
Seoul
CA $1,211 Roundtrip, found 1 day ago
CA $1,211
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Sun, Mar 22 from Seattle to Seoul, returning Wed, Apr 1, priced at CA $1,211 found 1 day ago
Thu, Apr 23 - Tue, May 5
SEA
Seattle
ICN
Seoul
CA $1,256 Roundtrip, found 20 hours ago
CA $1,256
Roundtrip
found 20 hours ago
Select EVA Airways flight, departing Thu, Apr 23 from Seattle to Seoul, returning Tue, May 5, priced at CA $1,256 found 20 hours ago
Mon, Apr 20 - Sun, May 10
SEA
Seattle
ICN
Seoul
CA $1,265 Roundtrip, found 1 day ago
CA $1,265
Roundtrip
found 1 day ago
Select China Airlines flight, departing Mon, Apr 20 from Seattle to Seoul, returning Sun, May 10, priced at CA $1,265 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.
*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.