AirHint found the following cheapest return flights from Porto (OPO) to Bilbao (BIO)
in September 2025 (see full year ).
Return flights
04 Sep
- 14 Sep
Volotea
$ 54
direct
04 Sep
- 18 Sep
Volotea
$ 54
direct
04 Sep
- 07 Sep
Volotea
$ 59
direct
04 Sep
- 25 Sep
Volotea
$ 59
direct
04 Sep
- 21 Sep
Volotea
$ 62
direct
04 Sep
- 11 Sep
Volotea
$ 62
direct
16 Sep
- 30 Sep
Vueling Airlines
$ 67
direct
16 Sep
- 18 Sep
Vueling Airlines
$ 67
direct
16 Sep
- 28 Sep
Vueling Airlines
$ 67
direct
16 Sep
- 27 Sep
Vueling Airlines
$ 67
direct
16 Sep
- 07 Oct
Vueling Airlines
$ 73
direct
25 Sep
- 07 Oct
Vueling Airlines
$ 83
direct
16 Sep
- 04 Oct
Vueling Airlines
$ 84
direct
16 Sep
- 03 Oct
Vueling Airlines
$ 93
direct
25 Sep
- 04 Oct
Vueling Airlines
$ 94
direct
23 Sep
- 07 Oct
Vueling Airlines
$ 97
direct
30 Sep
- 07 Oct
Vueling Airlines
$ 97
direct
25 Sep
- 11 Oct
Vueling Airlines
$ 99
direct
20 Sep
- 07 Oct
Vueling Airlines
$ 102
25 Sep
- 03 Oct
Vueling Airlines
$ 103
direct
Also check the deals for one-way flights from Porto to Bilbao in September .
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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