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

Return flights

29 Sep - 13 Oct	Brussels Airlines
30 Sep - 07 Oct	Condor
29 Sep - 08 Oct	Condor
28 Sep - 05 Oct	Condor
24 Sep - 01 Oct	Condor
25 Sep - 02 Oct	Condor
01 Sep - 10 Sep	Air Transat
23 Sep - 07 Oct	Condor
24 Sep - 08 Oct	Air Transat
10 Sep - 17 Sep	Condor
11 Sep - 18 Sep	Condor
08 Sep - 19 Sep	Air Transat
26 Sep - 03 Oct	Condor
29 Sep - 06 Oct	Condor
11 Sep - 25 Sep	Condor
15 Sep - 22 Sep	Air Transat
23 Sep - 30 Sep	Condor
06 Sep - 13 Sep	Condor
16 Sep - 23 Sep	Condor
22 Sep - 29 Sep	Condor

Also check the deals for one-way flights from Montreal to Zurich 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 Montreal to Zurich in September from 348€

Return flights