Cheapest return flights from Porto to Bilbao in May from 46€

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

Return flights

05 May - 19 May Vueling Airlines direct
05 May - 24 May Vueling Airlines direct
05 May - 14 May Vueling Airlines direct
21 May - 28 May Vueling Airlines direct
14 May - 19 May Vueling Airlines direct
14 May - 24 May Vueling Airlines direct
14 May - 28 May Vueling Airlines direct
15 May - 19 May Vueling Airlines direct
15 May - 24 May Vueling Airlines direct
15 May - 28 May Vueling Airlines direct
21 May - 05 Jun Vueling Airlines direct
15 May - 05 Jun Vueling Airlines direct
19 May - 05 Jun Vueling Airlines direct
22 May - 05 Jun Vueling Airlines direct
31 May - 05 Jun Vueling Airlines direct
30 May - 05 Jun Vueling Airlines

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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