Cheapest return flights from Brussels to Oslo in September from $123

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

Return flights

12 Sep - 23 Sep Norwegian direct
23 Sep - 12 Oct Norwegian direct
23 Sep - 14 Oct Norwegian direct
09 Sep - 23 Sep Norwegian direct
05 Sep - 23 Sep Norwegian direct
12 Sep - 16 Sep Norwegian direct
19 Sep - 23 Sep Norwegian direct
16 Sep - 23 Sep Norwegian direct
09 Sep - 16 Sep Norwegian direct
05 Sep - 16 Sep Norwegian direct
05 Sep - 09 Sep Norwegian direct
12 Sep - 21 Sep Norwegian direct
22 Sep - 07 Oct Brussels Airlines direct
23 Sep - 10 Oct Norwegian direct
23 Sep - 11 Oct Norwegian
29 Sep - 06 Oct Brussels Airlines direct
24 Sep - 01 Oct Brussels Airlines direct
19 Sep - 10 Oct Norwegian direct
25 Sep - 02 Oct Brussels Airlines direct
21 Sep - 12 Oct Norwegian direct

Also check the deals for one-way flights from Brussels 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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