Cheapest return flights from Oslo to Brussels in September from 119€

Best time to book flights for Oslo (OSL) to Brussels (BRU) flights at AirHint

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

Return flights

14 Sep - 19 Sep Norwegian direct
02 Sep - 19 Sep Norwegian direct
21 Sep - 07 Oct Norwegian direct
21 Sep - 10 Oct Norwegian direct
21 Sep - 26 Sep Norwegian direct
14 Sep - 26 Sep Norwegian direct
05 Sep - 19 Sep Norwegian direct
28 Sep - 07 Oct Norwegian direct
28 Sep - 10 Oct Norwegian direct
02 Sep - 07 Sep Norwegian direct
02 Sep - 14 Sep Norwegian direct
05 Sep - 07 Sep Norwegian direct
05 Sep - 14 Sep Norwegian direct
20 Sep - 07 Oct Vueling Airlines
20 Sep - 10 Oct Vueling Airlines
20 Sep - 26 Sep Vueling Airlines

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

Book a cheap hotel in Brussels

Cheap car rent in Brussels