Cheapest return flights from Washington to Seoul in December from 1,645€

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

Return flights

15 Dec - 06 Jan Air France
25 Dec - 04 Jan Alaska Airlines
25 Dec - 04 Jan Air Premia direct
22 Dec - 04 Jan SWISS
18 Dec - 13 Jan Air France
15 Dec - 06 Jan Korean Air direct
22 Dec - 04 Jan Delta direct
18 Dec - 13 Jan Korean Air direct
30 Dec - 03 Jan Emirates

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

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