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

Return flights

22 Sep - 29 Sep	FrenchBee
09 Sep - 16 Sep	Air France
02 Sep - 09 Sep	SWISS
03 Sep - 10 Sep	Air France
04 Sep - 11 Sep	Air France
15 Sep - 26 Sep	FrenchBee
04 Sep - 09 Sep	Air France
15 Sep - 22 Sep	FrenchBee
23 Sep - 06 Oct	Air France
29 Sep - 06 Oct	Air France
02 Sep - 16 Sep	Air France
16 Sep - 07 Oct	Air Transat
30 Sep - 07 Oct	KLM
16 Sep - 01 Oct	Air Transat
24 Sep - 01 Oct	Air Transat
03 Sep - 17 Sep	FrenchBee
10 Sep - 01 Oct	Air France
24 Sep - 20 Oct	Air France
26 Sep - 19 Oct	TAP
17 Sep - 08 Oct	KLM

Also check the deals for one-way flights from Montreal to Florence 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 Florence in September from $576

Return flights