Cheapest return DCA–ICN flights, October

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

Return flights

24 Oct - 01 Nov Alaska Airlines
06 Oct - 20 Oct Air Canada
16 Oct - 23 Oct Alaska Airlines
02 Oct - 12 Oct Air Canada
19 Oct - 23 Nov Alaska Airlines
02 Oct - 09 Oct Air Canada
16 Oct - 24 Oct Alaska Airlines
09 Oct - 17 Oct Alaska Airlines
02 Oct - 03 Oct Korean Air
01 Oct - 04 Oct Emirates

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

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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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