Cheapest return flights from Bilbao to Porto in December from $49

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

Return flights

13 Dec - 18 Dec Vueling Airlines direct
13 Dec - 30 Dec Vueling Airlines direct
13 Dec - 20 Dec Vueling Airlines direct
11 Dec - 18 Dec Vueling Airlines direct
11 Dec - 30 Dec Vueling Airlines direct
11 Dec - 20 Dec Vueling Airlines direct
11 Dec - 13 Dec Vueling Airlines direct
13 Dec - 23 Dec Vueling Airlines direct
23 Dec - 30 Dec Vueling Airlines direct
11 Dec - 23 Dec Vueling Airlines direct
23 Dec - 06 Jan Vueling Airlines direct
18 Dec - 06 Jan Vueling Airlines direct
30 Dec - 06 Jan Vueling Airlines direct
27 Dec - 06 Jan Vueling Airlines direct
29 Dec - 06 Jan Vueling Airlines
22 Dec - 06 Jan Vueling Airlines

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