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

Return flights

29 Aug - 06 Sep	Air Canada
28 Aug - 12 Sep	Air Canada
30 Aug - 06 Sep	Air Canada
27 Aug - 31 Aug	SWISS
28 Aug - 12 Sep	Air Transat	direct
22 Aug - 06 Sep	Air Canada
20 Aug - 26 Aug	Brussels Airlines
20 Aug - 08 Sep	Air Canada
22 Aug - 08 Sep	Air Canada
21 Aug - 08 Sep	Air Canada
22 Aug - 07 Sep	Air Canada
26 Aug - 04 Sep	Air Canada
25 Aug - 31 Aug	SWISS
19 Aug - 26 Aug	Air Canada
30 Aug - 31 Aug	Brussels Airlines
13 Aug - 21 Aug	Air Canada	direct
20 Aug - 30 Aug	Lufthansa
17 Aug - 24 Aug	Air Canada
13 Aug - 26 Aug	Air Canada
14 Aug - 18 Aug	Air Transat	direct

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

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 Montreal

Cheap car rent in Montreal

Cheapest return flights from Madrid to Montreal in August from $464

Return flights