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

Return flights

23 Sep - 02 Oct	British Airways
24 Sep - 09 Oct	British Airways
29 Sep - 09 Oct	British Airways
12 Sep - 22 Sep	easyJet
18 Sep - 21 Sep	British Airways
29 Sep - 11 Oct	British Airways
12 Sep - 19 Sep	easyJet
04 Sep - 19 Sep	easyJet
03 Sep - 08 Sep	British Airways
15 Sep - 19 Sep	Vueling Airlines
05 Sep - 19 Sep	British Airways
05 Sep - 20 Sep	British Airways
02 Sep - 12 Sep	KLM
03 Sep - 13 Sep	KLM
19 Sep - 10 Oct	Air Canada
26 Sep - 03 Oct	Air Canada
24 Sep - 03 Oct	Air Canada
26 Sep - 07 Oct	Air Canada
24 Sep - 03 Oct	Brussels Airlines	direct
24 Sep - 09 Oct	Brussels Airlines	direct

Also check the deals for one-way flights from Geneva to Montreal 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 Geneva to Montreal in September from $493

Return flights