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

Return flights

24 Oct - 07 Nov	TAP
12 Oct - 07 Nov	TAP
21 Oct - 28 Oct	British Airways
28 Oct - 04 Nov	British Airways
08 Oct - 28 Nov	Delta
08 Oct - 14 Nov	Delta
06 Oct - 24 Oct	Air France
25 Oct - 23 Nov	Air Canada	direct
23 Oct - 23 Nov	Air Canada	direct
16 Oct - 24 Oct	Air Canada
06 Oct - 29 Oct	Air France
12 Oct - 31 Oct	KLM
09 Oct - 24 Oct	Air France
12 Oct - 14 Nov	KLM
22 Oct - 03 Nov	KLM
15 Oct - 03 Nov	KLM
07 Oct - 16 Oct	Air Canada
16 Oct - 23 Oct	Air Canada
22 Oct - 29 Oct	KLM
06 Oct - 14 Oct	Air Canada

Also check the deals for one-way flights from Montreal to Madrid 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.

Book a cheap hotel in Madrid

Cheap car rent in Madrid

Cheapest return flights from Montreal to Madrid in October from $444

Return flights