Cheapest return flights from Basel to Oslo in September from $131

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

Return flights

11 Sep - 21 Sep Norwegian direct
11 Sep - 02 Oct Norwegian direct
16 Sep - 23 Sep Wizz Air
07 Sep - 21 Sep Norwegian direct
18 Sep - 21 Sep Norwegian direct
25 Sep - 02 Oct Norwegian direct
25 Sep - 12 Oct Norwegian direct
25 Sep - 09 Oct Norwegian direct
18 Sep - 02 Oct Norwegian direct
18 Sep - 09 Oct Norwegian direct
19 Sep - 21 Sep Wizz Air
29 Sep - 06 Oct Wizz Air Malta
12 Sep - 19 Sep Wizz Air Malta
11 Sep - 18 Sep Norwegian
11 Sep - 18 Sep Norwegian direct
04 Sep - 21 Sep Norwegian direct
29 Sep - 02 Oct Norwegian Air Sweden AOC
29 Sep - 12 Oct Norwegian Air Sweden AOC
29 Sep - 09 Oct Norwegian Air Sweden AOC
07 Sep - 18 Sep Norwegian direct

Also check the deals for one-way flights from Basel 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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