Cheapest return flights from Porto to Bilbao in December from 35€

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

Return flights

25 Dec - 15 Jan Vueling Airlines direct
25 Dec - 10 Jan Vueling Airlines direct
25 Dec - 08 Jan Vueling Airlines direct
25 Dec - 13 Jan Vueling Airlines direct
25 Dec - 06 Jan Vueling Airlines direct
23 Dec - 27 Dec Vueling Airlines direct
18 Dec - 08 Jan Vueling Airlines direct
04 Dec - 18 Dec Vueling Airlines direct
11 Dec - 18 Dec Vueling Airlines direct
13 Dec - 18 Dec Vueling Airlines direct
25 Dec - 01 Jan Vueling Airlines direct
04 Dec - 06 Dec Volotea direct
11 Dec - 13 Dec Vueling Airlines direct
04 Dec - 16 Dec Vueling Airlines direct
16 Dec - 18 Dec Vueling Airlines direct
11 Dec - 16 Dec Vueling Airlines direct
13 Dec - 16 Dec Vueling Airlines direct
18 Dec - 06 Jan Vueling Airlines direct
18 Dec - 04 Jan Volotea direct
18 Dec - 01 Jan Vueling Airlines direct

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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