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

Return flights

05 Sep - 11 Sep	TAP
03 Sep - 10 Sep	Air Transat	direct
18 Sep - 24 Sep	Air Transat	direct
05 Sep - 26 Sep	Air Transat	direct
18 Sep - 27 Sep	Air Transat
19 Sep - 21 Sep	Air Transat
05 Sep - 14 Sep	Air Transat
12 Sep - 21 Sep	Air Transat
08 Sep - 18 Sep	Air Transat	direct
22 Sep - 28 Sep	Air Transat
24 Sep - 04 Oct	KLM
26 Sep - 03 Oct	Air Canada
12 Sep - 03 Oct	KLM

Also check the deals for one-way flights from Rome 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 Rome to Montreal in September from 412€

Return flights