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

Return flights

19 Sep - 21 Sep	SWISS	direct
21 Sep - 26 Sep	SWISS	direct
27 Sep - 28 Sep	SWISS	direct
28 Sep - 07 Oct	SWISS	direct
20 Sep - 21 Sep	SWISS	direct
17 Sep - 21 Sep	SWISS	direct
16 Sep - 23 Sep	Condor
13 Sep - 20 Sep	SWISS
17 Sep - 19 Sep	Vueling Airlines
16 Sep - 23 Sep	SWISS	direct
17 Sep - 17 Sep	Vueling Airlines

Also check the deals for one-way flights from Zurich 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 Zurich to Geneva in September from 184€

Return flights