AirHint found the following cheapest return flights from Madrid (MAD) to Montreal (YUL) in May 2026 (see full year).

Return flights

09 May - 18 May	Air Transat	direct
12 May - 22 May	Air Transat	direct
03 May - 12 May	Air Canada
29 May - 06 Jun	Air Canada	direct
28 May - 06 Jun	Air Canada
30 May - 06 Jun	Air Canada	direct
23 May - 06 Jun	Air Canada
09 May - 16 May	Air Canada
10 May - 17 May	TAP
29 May - 13 Jun	Air Canada
30 May - 13 Jun	Air Canada
23 May - 13 Jun	SWISS
24 May - 13 Jun	easyJet

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

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 May from $469

Return flights