Cheapest return flights from Bilbao to Oslo in September from $149

AirHint found the following cheapest return flights from Bilbao (BIO) to Oslo (OSL) in September 2026 (see full year).

Return flights

23 Sep - 02 Oct Wizz Air Malta
02 Sep - 09 Sep Wizz Air Malta
05 Sep - 12 Sep Norwegian
01 Sep - 05 Sep easyJet
15 Sep - 23 Sep Wizz Air UK
16 Sep - 23 Sep Vueling Airlines
15 Sep - 22 Sep Vueling Airlines
05 Sep - 23 Sep Norwegian
02 Sep - 02 Sep Norwegian
02 Sep - 23 Sep Norwegian direct
02 Sep - 12 Sep Norwegian direct

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

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