AirHint found the following cheapest return flights from Bilbao (BIO) to Copenhagen (CPH) in August 2025 (see full year).

Return flights

31 Aug - 03 Sep	TAP
31 Aug - 14 Sep	Vueling Airlines
31 Aug - 07 Sep	Volotea
31 Aug - 05 Sep	SWISS
31 Aug - 20 Sep	Vueling Airlines
31 Aug - 16 Sep	Vueling Airlines
31 Aug - 13 Sep	Vueling Airlines
31 Aug - 18 Sep	Vueling Airlines
31 Aug - 11 Sep	Vueling Airlines
31 Aug - 19 Sep	Vueling Airlines

Also check the deals for one-way flights from Bilbao to Copenhagen in August.

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 Bilbao to Copenhagen in August from $323

Return flights