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

Return flights

13 Aug - 18 Aug	Vueling Airlines
26 Aug - 01 Sep	Wizz Air Malta
28 Aug - 01 Sep	Vueling Airlines
20 Aug - 30 Aug	Vueling Airlines
11 Aug - 18 Aug	Air Europa
28 Aug - 03 Sep	Vueling Airlines
26 Aug - 29 Aug	Wizz Air Malta
06 Aug - 11 Aug	Vueling Airlines
15 Aug - 17 Aug	Vueling Airlines
08 Aug - 12 Aug	Vueling Airlines
11 Aug - 25 Aug	Air Europa
05 Aug - 15 Aug	Wizz Air Malta
07 Aug - 10 Aug	Air Europa

Also check the deals for one-way flights from Bilbao to Helsinki 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 Helsinki in August from 212€

Return flights