Cheapest one-way flights from Washington to Seoul in December from 469€

AirHint found the following cheapest one-way flights from Washington (IAD) to Seoul (ICN) in December 2025 (see full year).

One-Way flights

08 Dec Turkish Airlines
10 Dec Turkish Airlines
29 Dec Turkish Airlines
31 Dec Turkish Airlines
07 Dec Turkish Airlines
06 Dec Turkish Airlines
28 Dec Turkish Airlines
24 Dec Frontier Airlines
04 Dec Air Canada
25 Dec Frontier Airlines

Also check the deals for return 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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