Cheapest return flights from Washington to Seoul in December from $1119

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

Return flights

07 Dec - 15 Dec Turkish Airlines
21 Dec - 28 Dec EVA Air
20 Dec - 30 Dec Icelandair
19 Dec - 09 Jan Air Canada
17 Dec - 20 Jan Austrian Airlines
17 Dec - 31 Dec Lufthansa
07 Dec - 15 Dec Delta direct
02 Dec - 16 Dec Delta direct
20 Dec - 02 Jan Air Canada
17 Dec - 20 Jan Korean Air direct
21 Dec - 28 Dec Delta direct
17 Dec - 31 Dec Delta direct
19 Dec - 09 Jan Delta direct

Also check the deals for one-way flights from Washington 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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