Cheapest return flights from Washington to Seoul in January from 1436€

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

Return flights

20 Jan - 27 Jan Air China
31 Jan - 11 Feb Turkish Airlines
31 Jan - 10 Feb Japan Airlines
23 Jan - 10 Feb Japan Airlines
31 Jan - 24 Feb ANA
31 Jan - 18 Feb Japan Airlines
20 Jan - 23 Jan Air China
19 Jan - 25 Jan ANA
19 Jan - 23 Jan ANA

Also check the deals for one-way 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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