Cheapest return flights from Washington to Seoul in August from $1364

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

11 Aug - 15 Aug Turkish Airlines
09 Aug - 15 Aug Turkish Airlines
08 Aug - 15 Aug Turkish Airlines
23 Aug - 12 Sep Alaska Airlines
23 Aug - 13 Sep Alaska Airlines
08 Aug - 15 Aug Korean Air direct
11 Aug - 15 Aug Korean Air direct
09 Aug - 15 Aug Korean Air 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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