Cheapest return flights from Washington to Seoul in October from $1156

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

Return flights

07 Oct - 13 Oct Air Canada
30 Oct - 16 Nov Philippine Airlines
02 Oct - 14 Oct Air Canada
07 Oct - 18 Oct Air Canada
02 Oct - 23 Oct Philippine Airlines
06 Oct - 28 Oct Air Canada
14 Oct - 21 Oct Cathay Pacific
07 Oct - 28 Oct Cathay Pacific
07 Oct - 26 Oct Cathay Pacific
14 Oct - 02 Nov Cathay Pacific
08 Oct - 15 Oct Cathay Pacific
26 Oct - 16 Nov Asiana Airlines
25 Oct - 15 Nov Alaska Airlines

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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