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

10 dates in December, from $ 586. Book in one tap, or check whether to buy now or wait.

One-wayReturn
Dates, airline, and price
Dates Airline Price
2 Dec Cathay Pacific
29 Dec Hainan Airlines
26 Dec Cathay Pacific
7 Dec Frontier Airlines
13 Dec Alaska Airlines
15 Dec Alaska Airlines
25 Dec Alaska Airlines
22 Dec Alaska Airlines
21 Dec Alaska Airlines
20 Dec Japan Airlines
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About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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