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 $987 round trip and CA $505 one way. Prices and availability subject to change. Additional terms may apply.

Mon, Apr 20 - Sun, May 10
SEA
Seattle
ICN
Seoul
CA $987 Roundtrip, found 5 days ago
CA $987
Roundtrip
found 5 days ago
Select Cathay Pacific flight, departing Mon, Apr 20 from Seattle to Seoul, returning Sun, May 10, priced at CA $987 found 5 days ago
Thu, Apr 16 - Thu, May 7
SEA
Seattle
ICN
Seoul
CA $988 Roundtrip, found 2 days ago
CA $988
Roundtrip
found 2 days ago
Select Cathay Pacific flight, departing Thu, Apr 16 from Seattle to Seoul, returning Thu, May 7, priced at CA $988 found 2 days ago
Sat, Apr 18 - Fri, May 1
SEA
Seattle
ICN
Seoul
CA $1,091 Roundtrip, found 5 days ago
CA $1,091
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Sat, Apr 18 from Seattle to Seoul, returning Fri, May 1, priced at CA $1,091 found 5 days ago
Tue, Apr 28 - Tue, May 5
SEA
Seattle
ICN
Seoul
CA $1,091 Roundtrip, found 10 hours ago
CA $1,091
Roundtrip
found 10 hours ago
Select Asiana Airlines flight, departing Tue, Apr 28 from Seattle to Seoul, returning Tue, May 5, priced at CA $1,091 found 10 hours ago
Wed, May 6 - Sun, May 10
SEA
Seattle
ICN
Seoul
CA $1,091 Roundtrip, found 9 hours ago
CA $1,091
Roundtrip
found 9 hours ago
Select Korean Air flight, departing Wed, May 6 from Seattle to Seoul, returning Sun, May 10, priced at CA $1,091 found 9 hours ago
Mon, May 11 - Thu, Jun 25
SEA
Seattle
ICN
Seoul
CA $1,111 Roundtrip, found 5 days ago
CA $1,111
Roundtrip
found 5 days ago
Select Air Canada flight, departing Mon, May 11 from Seattle to Seoul, returning Thu, Jun 25, priced at CA $1,111 found 5 days ago
Sat, Mar 28 - Sun, Apr 5
SEA
Seattle
ICN
Seoul
CA $1,209 Roundtrip, found 23 hours ago
CA $1,209
Roundtrip
found 23 hours ago
Select Hawaiian Airlines flight, departing Sat, Mar 28 from Seattle to Seoul, returning Sun, Apr 5, priced at CA $1,209 found 23 hours ago
Tue, Apr 28 - Tue, May 5
SEA
Seattle
ICN
Seoul
CA $1,253 Roundtrip, found 10 hours ago
CA $1,253
Roundtrip
found 10 hours ago
Select EVA Airways flight, departing Tue, Apr 28 from Seattle to Seoul, returning Tue, May 5, priced at CA $1,253 found 10 hours ago
Tue, Apr 28 - Tue, May 5
SEA
Seattle
ICN
Seoul
CA $1,289 Roundtrip, found 10 hours ago
CA $1,289
Roundtrip
found 10 hours ago
Select China Airlines flight, departing Tue, Apr 28 from Seattle to Seoul, returning Tue, May 5, priced at CA $1,289 found 10 hours ago
Wed, Oct 7 - Sun, Oct 18
SEA
Seattle
ICN
Seoul
CA $1,346 Roundtrip, found 5 days ago
CA $1,346
Roundtrip
found 5 days ago
Select Philippine Airlines flight, departing Wed, Oct 7 from Seattle to Seoul, returning Sun, Oct 18, priced at CA $1,346 found 5 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.
*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.