Cheapest return flights from Bilbao to Porto in December from $140

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

Return flights

01 Dec - 03 Dec Vueling Airlines
01 Dec - 10 Dec Vueling Airlines
06 Dec - 10 Dec Vueling Airlines
11 Dec - 13 Dec Air Europa
03 Dec - 10 Dec Vueling Airlines
03 Dec - 10 Dec Volotea direct
06 Dec - 10 Dec Volotea direct
08 Dec - 10 Dec Vueling Airlines
01 Dec - 05 Dec Vueling Airlines
03 Dec - 05 Dec Vueling Airlines

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

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