Cheapest return flights from Seoul to Seattle in December from 480€

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

Return flights

20 Dec - 26 Dec Air Canada
23 Dec - 27 Dec Air Canada
25 Dec - 30 Dec Air Canada
24 Dec - 30 Dec Air Canada
23 Dec - 27 Dec Korean Air direct
25 Dec - 30 Dec Asiana Airlines direct
24 Dec - 30 Dec Asiana Airlines direct
24 Dec - 02 Jan Asiana Airlines direct
20 Dec - 26 Dec Asiana Airlines direct

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