Cheapest return flights from Bilbao to Oslo in September from $185

Best time to book flights for Bilbao (BIO) to Oslo (OSL) flights at AirHint

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

Return flights

03 Sep - 07 Sep KLM
03 Sep - 22 Sep Norwegian
06 Sep - 10 Sep KLM
03 Sep - 10 Sep KLM
17 Sep - 20 Sep Vueling Airlines
17 Sep - 22 Sep Vueling Airlines
17 Sep - 01 Oct Vueling Airlines
03 Sep - 20 Sep Norwegian
20 Sep - 24 Sep Vueling Airlines
24 Sep - 27 Sep Vueling Airlines
29 Sep - 03 Oct Vueling Airlines
06 Sep - 22 Sep Norwegian
17 Sep - 06 Oct Vueling Airlines
27 Sep - 01 Oct Vueling Airlines
24 Sep - 06 Oct Vueling Airlines
20 Sep - 01 Oct Vueling Airlines
17 Sep - 04 Oct Vueling Airlines
27 Sep - 06 Oct Vueling Airlines
24 Sep - 04 Oct Vueling Airlines
20 Sep - 06 Oct Vueling Airlines

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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