Cheapest return flights from Porto to Bilbao in May from $53

Best time to book flights for Porto (OPO) to Bilbao (BIO) flights at AirHint

AirHint found the following cheapest return flights from Porto (OPO) to Bilbao (BIO) in May 2025 (see full year).

Return flights

29 May - 31 May Volotea direct
29 May - 08 Jun Volotea direct
29 May - 05 Jun Volotea direct
29 May - 01 Jun Volotea direct
22 May - 31 May Vueling Airlines direct
22 May - 08 Jun Vueling Airlines direct
22 May - 05 Jun Vueling Airlines direct
22 May - 01 Jun Vueling Airlines direct
25 May - 31 May Volotea direct
25 May - 08 Jun Volotea direct
29 May - 10 Jun Volotea direct
22 May - 29 May Vueling Airlines direct
25 May - 05 Jun Volotea direct
25 May - 01 Jun Volotea direct
25 May - 29 May Volotea direct
27 May - 31 May Vueling Airlines direct
15 May - 31 May Vueling Airlines direct
17 May - 31 May Vueling Airlines direct
27 May - 29 May Vueling Airlines direct
15 May - 29 May Vueling Airlines direct

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

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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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