Cheapest return flights from Porto to Bilbao in May from 45€

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

Return flights

05 May - 21 May Vueling Airlines direct
05 May - 14 May Vueling Airlines direct
14 May - 21 May Vueling Airlines direct
14 May - 28 May Vueling Airlines direct
26 May - 28 May Vueling Airlines direct
05 May - 07 May Vueling Airlines direct
26 May - 09 Jun Vueling Airlines direct
14 May - 02 Jun Vueling Airlines direct
26 May - 02 Jun Vueling Airlines direct
05 May - 10 May Vueling Airlines direct
19 May - 21 May Vueling Airlines direct
19 May - 28 May Vueling Airlines direct
26 May - 11 Jun Vueling Airlines direct
19 May - 09 Jun Vueling Airlines direct
19 May - 02 Jun Vueling Airlines direct
14 May - 31 May Vueling Airlines direct
26 May - 07 Jun Vueling Airlines direct
29 May - 09 Jun Vueling Airlines direct
19 May - 07 Jun Vueling Airlines direct
29 May - 02 Jun 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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