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

Return flights

26 Feb - 08 Mar	Frontier Airlines
05 Feb - 08 Feb	Frontier Airlines
21 Feb - 01 Mar	Frontier Airlines
05 Feb - 12 Feb	Frontier Airlines
13 Feb - 22 Feb	Breeze Airways
03 Feb - 10 Feb	Etihad Airways
07 Feb - 28 Feb	Hawaiian Airlines
18 Feb - 25 Feb	Turkish Airlines
16 Feb - 22 Feb	Turkish Airlines
04 Feb - 11 Feb	Turkish Airlines
03 Feb - 11 Feb	Turkish Airlines
13 Feb - 27 Mar	Breeze Airways
07 Feb - 21 Feb	Air Canada
26 Feb - 08 Mar	Delta	direct
13 Feb - 27 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 715€

Return flights