Cheapest return flights from Bilbao to Helsinki in September from $235

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

Return flights

24 Sep - 27 Sep Vueling Airlines
30 Sep - 04 Oct Vueling Airlines
24 Sep - 28 Sep Vueling Airlines
23 Sep - 27 Sep Vueling Airlines
25 Sep - 29 Sep Vueling Airlines
24 Sep - 26 Sep Vueling Airlines
30 Sep - 03 Oct Vueling Airlines
25 Sep - 27 Sep Vueling Airlines
29 Sep - 01 Oct Vueling Airlines
26 Sep - 29 Sep Vueling Airlines
26 Sep - 04 Oct Vueling Airlines
29 Sep - 03 Oct Air Europa
23 Sep - 26 Sep Vueling Airlines
27 Sep - 29 Sep Air Europa
30 Sep - 02 Oct Vueling Airlines
26 Sep - 30 Sep Vueling Airlines
29 Sep - 02 Oct Vueling Airlines
27 Sep - 01 Oct Air Europa
28 Sep - 01 Oct Vueling Airlines
28 Sep - 02 Oct Vueling Airlines

Also check the deals for one-way flights from Bilbao to Helsinki in September.

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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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