Cheapest return flights from Bilbao to Oslo in September from $142

AirHint found the following cheapest return flights from Bilbao (BIO) to Oslo (OSL) in September 2025 (see full year).

Return flights

27 Sep - 18 Oct Norwegian direct
27 Sep - 15 Oct Norwegian direct
24 Sep - 15 Oct Vueling Airlines
10 Sep - 16 Sep Norwegian
10 Sep - 17 Sep Norwegian
10 Sep - 24 Sep Norwegian direct
10 Sep - 20 Sep Norwegian direct
27 Sep - 11 Oct Norwegian
30 Sep - 04 Oct Vueling Airlines
20 Sep - 24 Sep Norwegian direct
24 Sep - 11 Oct Vueling Airlines
10 Sep - 17 Sep Norwegian direct
10 Sep - 13 Sep Norwegian direct
10 Sep - 14 Sep Norwegian
20 Sep - 06 Oct Norwegian
27 Sep - 06 Oct Norwegian
26 Sep - 30 Sep Scandinavian Airlines
17 Sep - 20 Sep Vueling Airlines
20 Sep - 08 Oct Norwegian
20 Sep - 04 Oct Norwegian

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