Cheapest one-way flights from Washington to Seoul in January from 406€

AirHint found the following cheapest one-way flights from Washington (DCA) to Seoul (ICN) in January 2026 (see full year).

One-Way flights

31 Jan Frontier Airlines
30 Jan Frontier Airlines
28 Jan Hawaiian Airlines
12 Jan Frontier Airlines
15 Jan Frontier Airlines
05 Jan Frontier Airlines
29 Jan Alaska Airlines
21 Jan Alaska Airlines
01 Jan Frontier Airlines
18 Jan Delta

Also check the deals for return flights from Washington to Seoul in January.

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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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