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

Return flights

22 Oct - 05 Nov	Scandinavian Airlines
31 Oct - 07 Nov	British Airways
09 Oct - 13 Oct	Scandinavian Airlines
19 Oct - 02 Nov	Scandinavian Airlines
03 Oct - 12 Oct	Scandinavian Airlines
03 Oct - 10 Oct	British Airways

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

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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Cheapest return flights from Washington to Copenhagen in October from $567

Return flights