Cheapest return flights from Washington to Seoul in August from $963

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

Return flights

18 Aug - 08 Sep EVA Air
03 Aug - 28 Aug Alaska Airlines
15 Aug - 27 Aug Alaska Airlines
10 Aug - 14 Aug Air Premia direct
03 Aug - 28 Aug Air Premia direct
18 Aug - 08 Sep Delta direct
15 Aug - 27 Aug Delta direct

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

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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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