Cheapest return BSL–OSL flights, September

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

Return flights

02 Sep - 10 Sep Wizz Air
01 Sep - 10 Sep Wizz Air
04 Sep - 24 Sep Wizz Air
03 Sep - 24 Sep Wizz Air
10 Sep - 20 Sep Wizz Air
10 Sep - 01 Oct Norwegian direct
03 Sep - 06 Sep Wizz Air
10 Sep - 13 Sep Wizz Air
24 Sep - 01 Oct Norwegian direct
06 Sep - 20 Sep Norwegian direct
06 Sep - 24 Sep Norwegian direct
03 Sep - 25 Sep Wizz Air
24 Sep - 08 Oct Norwegian direct
21 Sep - 02 Oct easyJet
11 Sep - 01 Oct Norwegian Air Sweden AOC
21 Sep - 01 Oct Norwegian Air Sweden AOC
21 Sep - 08 Oct Norwegian Air Sweden AOC
24 Sep - 02 Oct Norwegian
11 Sep - 02 Oct Norwegian Air Sweden AOC

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

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