Cheapest return flights from Washington to Seoul in December from 767€

AirHint found the following cheapest return flights from Washington (DCA) to Seoul (ICN) in December 2025 (see full year).

Return flights

26 Dec - 19 Jan Air Canada
29 Dec - 24 Jan Air Canada
01 Dec - 08 Dec Air Canada
01 Dec - 30 Dec Air Canada
09 Dec - 01 Jan Air Canada
16 Dec - 06 Jan Finnair
17 Dec - 06 Jan Finnair
12 Dec - 06 Jan Frontier Airlines
12 Dec - 04 Jan Frontier Airlines
28 Dec - 14 Jan Delta
14 Dec - 07 Jan Delta
09 Dec - 03 Jan Air Canada
19 Dec - 31 Dec Delta
09 Dec - 16 Dec Emirates

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

Skyscanner

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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