AirHint found the following cheapest return flights from Lyon (LYS) to Ljubljana (LJU) in September 2025 (see full year).

Return flights

12 Sep - 18 Sep	Brussels Airlines
05 Sep - 07 Sep	Volotea
10 Sep - 16 Sep	Brussels Airlines
02 Sep - 09 Sep	Lufthansa
06 Sep - 09 Sep	Lufthansa
15 Sep - 19 Sep	Wizz Air Malta
11 Sep - 13 Sep	Turkish Airlines
06 Sep - 19 Sep	Lufthansa
06 Sep - 18 Sep	Lufthansa
06 Sep - 20 Sep	Lufthansa

Also check the deals for one-way flights from Lyon to Ljubljana 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 Lyon to Ljubljana in September from 179€

Return flights