AirHint found the following cheapest return flights from Paris (CDG) to Montreal (YUL) in October 2025 (see full year).

Return flights

10 Oct - 22 Oct	Brussels Airlines
10 Oct - 25 Oct	Lufthansa
01 Oct - 24 Oct	Lufthansa
07 Oct - 14 Oct	Lufthansa
17 Oct - 25 Oct	Lufthansa
17 Oct - 26 Oct	Lufthansa
25 Oct - 03 Nov	Lufthansa
03 Oct - 10 Oct	Lufthansa
15 Oct - 22 Oct	Lufthansa
14 Oct - 04 Nov	Lufthansa
08 Oct - 24 Oct	SWISS
09 Oct - 16 Oct	SWISS
07 Oct - 06 Nov	Lufthansa
25 Oct - 15 Nov	Lufthansa
25 Oct - 22 Nov	Lufthansa
20 Oct - 05 Nov	Lufthansa
31 Oct - 07 Nov	SWISS
01 Oct - 21 Nov	British Airways
31 Oct - 03 Nov	British Airways
25 Oct - 09 Nov	British Airways

Also check the deals for one-way flights from Paris to Montreal in October.

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 Paris to Montreal in October from 320€

Return flights