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

Return flights

24 Sep - 01 Oct	SWISS
05 Sep - 08 Oct	Air France
03 Sep - 10 Sep	British Airways
17 Sep - 24 Sep	British Airways
28 Sep - 05 Oct	Air France
15 Sep - 22 Sep	Emirates
30 Sep - 07 Oct	Emirates
25 Sep - 02 Oct	Emirates
05 Sep - 22 Sep	KLM
23 Sep - 30 Sep	Air France
10 Sep - 17 Sep	KLM
16 Sep - 23 Sep	Air France
17 Sep - 17 Oct	Emirates
09 Sep - 16 Sep	Air France
21 Sep - 28 Sep	KLM
25 Sep - 30 Sep	Air France
29 Sep - 06 Oct	Emirates
26 Sep - 03 Oct	FrenchBee
27 Sep - 04 Oct	Air Transat

Also check the deals for one-way flights from Montreal to Plaisance 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 Plaisance in September from 1089€

Return flights