Cheapest return flights from Washington to Seoul in October from $1309

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

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

Return flights

15 Oct - 29 Oct Air Canada
12 Oct - 19 Oct Cathay Pacific
02 Oct - 26 Nov Air Canada
25 Oct - 09 Nov Air Canada
06 Oct - 15 Oct Air Canada
02 Oct - 23 Oct Air Canada
11 Oct - 19 Oct American Airlines
20 Oct - 25 Oct Air Canada
06 Oct - 27 Oct Air Canada
22 Oct - 27 Nov Air Canada
26 Oct - 09 Nov Air Canada
21 Oct - 31 Oct Air Canada
01 Oct - 18 Oct Alaska Airlines
10 Oct - 19 Oct American Airlines

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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