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

Return flights

12 Feb - 22 Feb	Turkish Airlines
10 Feb - 19 Feb	Turkish Airlines
04 Feb - 04 Mar	Turkish Airlines
10 Feb - 20 Feb	Turkish Airlines
05 Feb - 12 Feb	Frontier Airlines
13 Feb - 20 Feb	Turkish Airlines
20 Feb - 01 Mar	Hawaiian Airlines
01 Feb - 15 Feb	Turkish Airlines
10 Feb - 19 Feb	Delta	direct
04 Feb - 04 Mar	Delta	direct
01 Feb - 15 Feb	Korean Air	direct
10 Feb - 20 Feb	Delta	direct
12 Feb - 22 Feb	Delta	direct
20 Feb - 01 Mar	Delta	direct

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

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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Cheapest return flights from Washington to Seoul in February from $1006

Return flights