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

Return flights

15 Sep - 22 Sep	Air Transat
29 Sep - 06 Oct	Air Transat
08 Sep - 15 Sep	Air Transat
27 Sep - 04 Oct	Air Transat
18 Sep - 25 Sep	Air Transat
17 Sep - 24 Sep	Air Transat
16 Sep - 23 Sep	Air Transat
15 Sep - 23 Sep	Air Transat
09 Sep - 16 Sep	Air Transat
14 Sep - 21 Sep	Air Transat
04 Sep - 11 Sep	Air Transat
16 Sep - 30 Sep	Air Transat
30 Sep - 07 Oct	Condor
24 Sep - 01 Oct	Air Transat
07 Sep - 07 Oct	Air Transat
25 Sep - 02 Oct	Air Transat
28 Sep - 05 Oct	Condor
26 Sep - 03 Oct	Air Transat
02 Sep - 27 Oct	Condor
24 Sep - 01 Oct	Air Canada	direct

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 523€

Return flights