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

Return flights

29 Aug - 09 Sep	Air Canada	direct
27 Aug - 25 Sep	Air Canada	direct
29 Aug - 05 Sep	Air Canada	direct
30 Aug - 03 Sep	Air Canada
23 Aug - 06 Sep	Air Canada	direct
28 Aug - 18 Sep	Air Canada
26 Aug - 04 Sep	SWISS
24 Aug - 02 Sep	Air Canada
27 Aug - 31 Aug	Air Canada
28 Aug - 11 Sep	SWISS
28 Aug - 31 Aug	SWISS
30 Aug - 06 Sep	Lufthansa	direct
23 Aug - 31 Aug	Air Canada
24 Aug - 31 Aug	Air Canada
26 Aug - 31 Aug	Air Canada
22 Aug - 25 Aug	Air Canada
22 Aug - 26 Aug	Air Canada
21 Aug - 26 Aug	United
23 Aug - 30 Aug	Lufthansa
23 Aug - 28 Aug	Brussels Airlines

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.

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Cheapest return flights from Madrid to Montreal in August from 414€

Return flights