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

Return flights

28 Sep - 02 Oct	Lufthansa
30 Sep - 02 Oct	Ryanair
22 Sep - 29 Sep	SWISS
26 Sep - 28 Sep	SWISS
19 Sep - 22 Sep	SWISS
19 Sep - 23 Sep	SWISS
20 Sep - 22 Sep	SWISS
15 Sep - 27 Sep	Lufthansa
15 Sep - 28 Sep	Lufthansa
19 Sep - 26 Sep	SWISS
20 Sep - 21 Sep	SWISS
19 Sep - 21 Sep	SWISS
30 Sep - 02 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 $180

Return flights