AirHint found the following cheapest return flights from Florence (FLR) to Bilbao (BIO) in May 2026 (see full year).

Return flights

05 May - 09 May	Volotea	direct
05 May - 20 May	Volotea
05 May - 23 May	Volotea	direct
05 May - 18 May	Volotea
05 May - 05 May	Volotea
12 May - 20 May	Volotea
19 May - 20 May	Volotea
05 May - 10 May	Volotea
12 May - 23 May	Volotea	direct
19 May - 23 May	Volotea	direct
19 May - 09 Jun	Volotea
30 May - 09 Jun	Vueling Airlines
30 May - 11 Jun	Vueling Airlines
26 May - 09 Jun	Vueling Airlines
26 May - 11 Jun	Vueling Airlines
26 May - 09 Jun	Volotea	direct
30 May - 09 Jun	Volotea	direct
19 May - 06 Jun	Volotea	direct
12 May - 01 Jun	Volotea
19 May - 01 Jun	Volotea

Also check the deals for one-way flights from Florence to Bilbao in May.

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 Florence to Bilbao in May from $113

Return flights