Cheapest return flights from Porto to Bilbao in December from $48

Best time to book flights for Porto (OPO) to Bilbao (BIO) flights at AirHint

AirHint found the following cheapest return flights from Porto (OPO) to Bilbao (BIO) in December 2025 (see full year).

Return flights

13 Dec - 23 Dec Vueling Airlines direct
20 Dec - 23 Dec Vueling Airlines direct
30 Dec - 20 Jan Vueling Airlines direct
11 Dec - 13 Dec Vueling Airlines direct
11 Dec - 23 Dec Vueling Airlines direct
13 Dec - 30 Dec Vueling Airlines direct
20 Dec - 30 Dec Vueling Airlines direct
11 Dec - 30 Dec Vueling Airlines direct
06 Dec - 13 Dec Vueling Airlines direct
06 Dec - 09 Dec Vueling Airlines direct
06 Dec - 11 Dec Vueling Airlines direct
13 Dec - 03 Jan Vueling Airlines direct
30 Dec - 03 Jan Vueling Airlines direct
20 Dec - 03 Jan Vueling Airlines direct
30 Dec - 19 Jan Vueling Airlines
14 Dec - 03 Jan Vueling Airlines
13 Dec - 02 Jan Vueling Airlines
30 Dec - 02 Jan Vueling Airlines
20 Dec - 02 Jan Vueling Airlines
21 Dec - 03 Jan Vueling Airlines

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

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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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