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

Return flights

17 Sep - 20 Sep	Ryanair
03 Sep - 04 Sep	Ryanair
10 Sep - 17 Sep	Ryanair
29 Sep - 06 Oct	Norwegian Air Sweden AOC
09 Sep - 16 Sep	Ryanair
12 Sep - 14 Sep	Ryanair
04 Sep - 07 Sep	Ryanair
06 Sep - 29 Sep	Ryanair
01 Sep - 08 Sep	KLM
06 Sep - 11 Sep	Ryanair
06 Sep - 12 Sep	Ryanair
26 Sep - 17 Oct	Norwegian Air Sweden AOC
26 Sep - 10 Oct	Norwegian Air Sweden AOC

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

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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Cheapest return flights from Toulouse to Oslo in September from 135€

Return flights