Cheapest one-way flights from Seattle (SEA) to Seoul (ICN), December

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
05 Dec Hainan Airlines
22 Dec Korean Air
Direct Flight
21 Dec Korean Air
Direct Flight
20 Dec Alaska Airlines
16 Dec Korean Air
Direct Flight
19 Dec Korean Air
18 Dec Korean Air
Direct Flight
20 Dec Korean Air
Direct Flight
19 Dec Asiana Airlines
Direct Flight
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deals for return flights from Seattle to Seoul in December.

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Updated May 21, 2026.

About these fares

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