CA $637 Cheap WestJet fights from Seattle (SEA) to Seoul (ICN)

View CA $637 flight on Mon, Sep. 29, 2025Opens in a new window

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WestJet flights from Seattle to Seoul (SEA→ICN)

Prices were available within the past 7 days and start at CA $637 for one-way flights and CA $1,387 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

WestJet
Mon., Sep. 29 - Thu., Oct. 9
SEA
Seattle
ICN
Seoul
CA $1,387 Roundtrip, found 2 hours ago
CA $1,387
Roundtrip
found 2 hours ago
Select WestJet flight, departing Mon., Sep. 29 from Seattle to Seoul, returning Thu., Oct. 9, priced at CA $1,387 found 2 hours ago
WestJet
Mon., Sep. 29 - Thu., Oct. 9
SEA
Seattle
ICN
Seoul
CA $1,421 Roundtrip, found 2 hours ago
CA $1,421
Roundtrip
found 2 hours ago
Select WestJet flight, departing Mon., Sep. 29 from Seattle to Seoul, returning Thu., Oct. 9, priced at CA $1,421 found 2 hours ago
WestJet
Thu., Jun. 5 - Mon., Jun. 16
SEA
Seattle
ICN
Seoul
CA $1,500 Roundtrip, found 6 days ago
CA $1,500
Roundtrip
found 6 days ago
Select WestJet flight, departing Thu., Jun. 5 from Seattle to Seoul, returning Mon., Jun. 16, priced at CA $1,500 found 6 days ago
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