Cheapest return flights from Seattle to Seoul in December from $1073

AirHint found the following cheapest return flights from Seattle (SEA) to Seoul (ICN) in December 2026 (see full year).

Return flights

12 Dec - 29 Dec Asiana Airlines direct
11 Dec - 01 Jan Asiana Airlines direct
19 Dec - 19 Jan Asiana Airlines direct
22 Dec - 29 Dec Air Canada

Also check the deals for one-way flights from Seattle to Seoul in December.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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