Cheapest return flights from Washington to Seoul in October from $1028

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 October 2025 (see full year).

Return flights

15 Oct - 22 Oct Turkish Airlines
15 Oct - 20 Oct Turkish Airlines
14 Oct - 28 Oct Turkish Airlines
15 Oct - 22 Oct Korean Air direct
14 Oct - 28 Oct Korean Air direct
15 Oct - 20 Oct Korean Air direct

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

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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