Cheapest return flights from Seoul to Seattle in December from $773

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

Return flights

24 Dec - 02 Jan Air Canada
05 Dec - 13 Dec Air Canada
25 Dec - 01 Jan Air Canada
21 Dec - 25 Dec Air Canada
21 Dec - 25 Dec Asiana Airlines direct
25 Dec - 01 Jan Asiana Airlines direct
24 Dec - 02 Jan Asiana Airlines direct
31 Dec - 04 Jan Asiana Airlines direct
05 Dec - 13 Dec Korean Air direct

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

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