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

Return flights

05 Sep - 08 Oct	Croatia Airlines
15 Sep - 22 Sep	Air France
16 Sep - 26 Sep	Brussels Airlines
09 Sep - 16 Sep	Air France
24 Sep - 01 Oct	SWISS
23 Sep - 30 Sep	Air France
30 Sep - 07 Oct	Emirates
25 Sep - 02 Oct	Emirates
29 Sep - 06 Oct	Emirates
17 Sep - 07 Oct	Emirates
06 Sep - 13 Sep	Aegean Airlines
01 Sep - 09 Sep	Air France
04 Sep - 11 Sep	Croatia Airlines
16 Sep - 23 Sep	KLM
03 Sep - 10 Sep	KLM
26 Sep - 03 Oct	SWISS
18 Sep - 25 Sep	Brussels Airlines
17 Sep - 17 Oct	Aegean Airlines
28 Sep - 05 Oct	Lufthansa

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 $1303

Return flights