Cheapest return flights from Washington to Seoul in August from $1075

Best time to book flights for Washington (IAD) to Seoul (ICN) flights at AirHint

AirHint found the following cheapest return flights from Washington (IAD) to Seoul (ICN) in August 2025 (see full year).

Return flights

18 Aug - 02 Sep Turkish Airlines
27 Aug - 02 Sep Turkish Airlines
25 Aug - 09 Sep Turkish Airlines
21 Aug - 01 Sep Turkish Airlines
05 Aug - 18 Aug Turkish Airlines
27 Aug - 31 Aug Turkish Airlines
05 Aug - 17 Aug Turkish Airlines
04 Aug - 18 Aug Turkish Airlines
27 Aug - 30 Aug Turkish Airlines
15 Aug - 22 Aug Turkish Airlines
03 Aug - 23 Aug Turkish Airlines
02 Aug - 20 Aug Alaska Airlines
15 Aug - 25 Aug Turkish Airlines
15 Aug - 23 Aug Turkish Airlines
21 Aug - 01 Sep Korean Air direct
27 Aug - 01 Sep Air Canada
27 Aug - 01 Sep Delta direct
27 Aug - 02 Sep Delta direct

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

Skyscanner

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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