AirHint found the following cheapest return flights from Porto (OPO) to Bilbao (BIO) in November 2026 (see full year).
Return flights
| 05 Nov - 08 Nov | Volotea | direct | |
| 06 Nov - 08 Nov | Air Europa | ||
| 06 Nov - 09 Nov | Air Europa |
Also check the deals for one-way flights from Porto to Bilbao in November.
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