Cheapest return flights from Washington to Seoul in August from $1219

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

Return flights

30 Aug - 27 Sep Air Canada
28 Aug - 25 Sep Air Canada
05 Aug - 25 Aug Alaska Airlines
06 Aug - 19 Aug Alaska Airlines
14 Aug - 21 Aug Alaska Airlines
27 Aug - 03 Sep Alaska Airlines
19 Aug - 26 Aug Cathay Pacific

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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