Cheapest return flights from Washington to Seoul in March from $945

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

Return flights

31 Mar - 29 Apr Etihad Airways
05 Mar - 15 Mar Frontier Airlines
09 Mar - 27 Mar Turkish Airlines
05 Mar - 13 Mar Turkish Airlines
04 Mar - 11 Mar Turkish Airlines
03 Mar - 19 Mar Turkish Airlines
05 Mar - 08 Mar Frontier Airlines
28 Mar - 24 Apr Porter Airlines (Canada) Ltd
23 Mar - 15 Apr Porter Airlines (Canada) Ltd
23 Mar - 24 Apr Porter Airlines (Canada) Ltd
02 Mar - 16 Mar Turkish Airlines
30 Mar - 13 Apr Porter Airlines (Canada) Ltd
09 Mar - 21 Mar Turkish Airlines
18 Mar - 15 Apr Porter Airlines (Canada) Ltd
23 Mar - 13 Apr Porter Airlines (Canada) Ltd
31 Mar - 14 Apr Etihad Airways
17 Mar - 17 Apr Etihad Airways
01 Mar - 04 Mar Frontier Airlines
14 Mar - 22 Mar Turkish Airlines
19 Mar - 12 Apr Etihad Airways

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

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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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