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 $977 round trip and CA $507 one way. Prices and availability subject to change. Additional terms may apply.

Thu, Mar 5 - Wed, Mar 11
SEA
Seattle
ICN
Seoul
CA $977 Roundtrip, found 5 hours ago
CA $977
Roundtrip
found 5 hours ago
Select Hainan Airlines flight, departing Thu, Mar 5 from Seattle to Seoul, returning Wed, Mar 11, priced at CA $977 found 5 hours ago
Wed, Feb 18 - Thu, Feb 26
SEA
Seattle
ICN
Seoul
CA $1,159 Roundtrip, found 16 hours ago
CA $1,159
Roundtrip
found 16 hours ago
Select Air Canada flight, departing Wed, Feb 18 from Seattle to Seoul, returning Thu, Feb 26, priced at CA $1,159 found 16 hours ago
Sat, Jan 24 - Mon, Jan 26
SEA
Seattle
ICN
Seoul
CA $1,214 Roundtrip, found 5 hours ago
CA $1,214
Roundtrip
found 5 hours ago
Select Asiana Airlines flight, departing Sat, Jan 24 from Seattle to Seoul, returning Mon, Jan 26, priced at CA $1,214 found 5 hours ago
Fri, Mar 6 - Mon, Mar 9
SEA
Seattle
ICN
Seoul
CA $1,215 Roundtrip, found 4 hours ago
CA $1,215
Roundtrip
found 4 hours ago
Select Korean Air flight, departing Fri, Mar 6 from Seattle to Seoul, returning Mon, Mar 9, priced at CA $1,215 found 4 hours ago
Thu, Jan 15 - Fri, Feb 6
SEA
Seattle
ICN
Seoul
CA $1,215 Roundtrip, found 6 hours ago
CA $1,215
Roundtrip
found 6 hours ago
Select Delta flight, departing Thu, Jan 15 from Seattle to Seoul, returning Fri, Feb 6, priced at CA $1,215 found 6 hours ago
Wed, Jan 21 - Sat, Jan 24
SEA
Seattle
ICN
Seoul
CA $1,216 Roundtrip, just found
CA $1,216
Roundtrip
just found
Select Alaska Airlines flight, departing Wed, Jan 21 from Seattle to Seoul, returning Sat, Jan 24, priced at CA $1,216 just found
Thu, Jan 15 - Fri, Feb 6
SEA
Seattle
ICN
Seoul
CA $1,241 Roundtrip, found 6 hours ago
CA $1,241
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Thu, Jan 15 from Seattle to Seoul, returning Fri, Feb 6, priced at CA $1,241 found 6 hours ago
Fri, Mar 20 - Tue, Mar 24
SEA
Seattle
ICN
Seoul
CA $1,302 Roundtrip, found 1 day ago
CA $1,302
Roundtrip
found 1 day ago
Select China Airlines flight, departing Fri, Mar 20 from Seattle to Seoul, returning Tue, Mar 24, priced at CA $1,302 found 1 day ago
Thu, Oct 1 - Sat, Oct 24
SEA
Seattle
ICN
Seoul
CA $1,359 Roundtrip, found 3 days ago
CA $1,359
Roundtrip
found 3 days ago
Select Philippine Airlines flight, departing Thu, Oct 1 from Seattle to Seoul, returning Sat, Oct 24, priced at CA $1,359 found 3 days ago
Wed, Oct 21 - Wed, Oct 28
SEA
Seattle
ICN
Seoul
CA $1,361 Roundtrip, found 8 hours ago
CA $1,361
Roundtrip
found 8 hours ago
Select Cathay Pacific flight, departing Wed, Oct 21 from Seattle to Seoul, returning Wed, Oct 28, priced at CA $1,361 found 8 hours 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.