Cheapest one-way flights from Porto to Bilbao in May from $16

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

One-Way flights

13 May Vueling Airlines direct
06 May Vueling Airlines direct
28 May Vueling Airlines direct
26 May Vueling Airlines direct
14 May Vueling Airlines direct
05 May Vueling Airlines direct
07 May Volotea direct
24 May Volotea direct
15 May Vueling Airlines direct
23 May Iberia

Also check the deals for return 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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