Cheapest return flights from Porto to Bilbao in September from 49€

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 September 2025 (see full year).

Return flights

09 Sep - 30 Sep Vueling Airlines direct
09 Sep - 16 Sep Vueling Airlines direct
09 Sep - 21 Sep Vueling Airlines direct
18 Sep - 02 Oct Vueling Airlines direct
18 Sep - 30 Sep Vueling Airlines direct
20 Sep - 02 Oct Vueling Airlines direct
12 Sep - 02 Oct Vueling Airlines direct
09 Sep - 28 Sep Vueling Airlines direct
09 Sep - 14 Sep Vueling Airlines direct
20 Sep - 30 Sep Vueling Airlines direct
12 Sep - 30 Sep Vueling Airlines direct
18 Sep - 21 Sep Vueling Airlines direct
11 Sep - 02 Oct Volotea direct
20 Sep - 11 Oct Vueling Airlines direct
25 Sep - 02 Oct Volotea direct
09 Sep - 11 Sep Vueling Airlines direct
25 Sep - 16 Oct Volotea direct
25 Sep - 11 Oct Volotea direct
18 Sep - 05 Oct Vueling Airlines direct
20 Sep - 05 Oct Vueling Airlines direct

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

Skyscanner

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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