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

Return flights

26 Sep - 30 Sep	easyJet	direct
30 Sep - 04 Oct	easyJet	direct
07 Sep - 09 Sep	easyJet	direct
29 Sep - 02 Oct	easyJet	direct
23 Sep - 28 Sep	easyJet	direct
09 Sep - 13 Sep	easyJet	direct
01 Sep - 05 Sep	easyJet	direct
02 Sep - 05 Sep	easyJet	direct
25 Sep - 28 Sep	easyJet	direct
26 Sep - 27 Sep	easyJet	direct
21 Sep - 24 Sep	easyJet	direct
25 Sep - 27 Sep	easyJet	direct
29 Sep - 25 Oct	easyJet	direct
26 Sep - 20 Oct	easyJet	direct
28 Sep - 12 Oct	easyJet	direct

Also check the deals for one-way flights from London 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 London to Geneva in September from $92

Return flights