Cheapest return flights from Basel to Oslo in September from $142

Best time to book flights for Basel (BSL) to Oslo (OSL) flights at AirHint

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

Return flights

18 Sep - 21 Sep Norwegian direct
07 Sep - 21 Sep Norwegian direct
28 Sep - 12 Oct Norwegian direct
14 Sep - 21 Sep Norwegian direct
28 Sep - 16 Oct Norwegian direct
28 Sep - 09 Oct Norwegian direct
04 Sep - 21 Sep Norwegian direct
18 Sep - 09 Oct Norwegian direct
10 Sep - 21 Sep Vueling Airlines
07 Sep - 18 Sep Norwegian direct
15 Sep - 21 Sep easyJet
14 Sep - 18 Sep Norwegian direct
04 Sep - 14 Sep Norwegian direct
10 Sep - 14 Sep Vueling Airlines
19 Sep - 09 Oct Norwegian Air Sweden AOC
19 Sep - 10 Oct Norwegian Air Sweden AOC

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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