AirHint found the following cheapest return flights from Luxemburg (LUX) to Geneva (GVA) in September 2025 (see full year).

Return flights

18 Sep - 20 Oct	Ryanair
22 Sep - 13 Oct	SWISS
27 Sep - 28 Sep	SWISS
26 Sep - 30 Sep	SWISS
26 Sep - 01 Oct	SWISS
26 Sep - 27 Sep	SWISS
25 Sep - 27 Sep	SWISS
26 Sep - 29 Sep	SWISS
26 Sep - 28 Sep	SWISS
25 Sep - 28 Sep	SWISS
18 Sep - 25 Sep	Ryanair
19 Sep - 26 Sep	SWISS
21 Sep - 28 Sep	SWISS
18 Sep - 20 Oct	Luxair	direct
26 Sep - 01 Oct	Luxair	direct

Also check the deals for one-way flights from Luxemburg to Geneva 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 Luxemburg to Geneva in September from 171€

Return flights