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

Return flights

06 Oct - 12 Oct	Air Transat	direct
07 Oct - 20 Oct	Lufthansa
08 Oct - 18 Oct	Air Canada
06 Oct - 22 Oct	Air Canada
07 Oct - 21 Oct	Brussels Airlines
01 Oct - 08 Oct	Air Canada
05 Oct - 12 Oct	Lufthansa
06 Oct - 13 Oct	Air Canada
07 Oct - 14 Oct	Air Canada
08 Oct - 15 Oct	Air Canada
31 Oct - 12 Nov	KLM
29 Oct - 05 Nov	KLM
29 Oct - 06 Nov	British Airways
27 Oct - 03 Nov	British Airways
28 Oct - 04 Nov	British Airways
30 Oct - 06 Nov	British Airways
31 Oct - 07 Nov	British Airways
26 Oct - 02 Nov	British Airways
29 Oct - 06 Nov	Air Canada	direct
25 Oct - 02 Nov	Air Canada	direct

Also check the deals for one-way flights from Brussels 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 Brussels to Montreal in October from 383€

Return flights