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

Return flights

14 Sep - 12 Oct	FrenchBee
14 Sep - 10 Oct	Royal Air Maroc	direct
13 Sep - 10 Oct	Royal Air Maroc	direct
17 Sep - 09 Oct	Air Canada	direct
15 Sep - 28 Sep	FrenchBee
30 Sep - 23 Oct	Royal Air Maroc	direct
14 Sep - 12 Oct	Royal Air Maroc	direct
11 Sep - 12 Oct	Royal Air Maroc	direct
08 Sep - 23 Oct	Royal Air Maroc	direct
21 Sep - 21 Oct	Royal Air Maroc	direct
04 Sep - 08 Oct	Royal Air Maroc	direct
08 Sep - 17 Sep	FrenchBee
10 Sep - 23 Sep	FrenchBee
03 Sep - 25 Sep	FrenchBee
05 Sep - 15 Sep	TAP
12 Sep - 26 Sep	TAP
03 Sep - 22 Sep	TAP
08 Sep - 22 Sep	TAP
10 Sep - 28 Sep	TAP
05 Sep - 28 Sep	TAP

Also check the deals for one-way flights from Montreal to Casablanca 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 Casablanca in September from $628

Return flights