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

Return flights

05 May - 12 May	Air Canada	direct
01 May - 08 May	TAP
04 May - 11 May	TAP
08 May - 15 May	TAP
06 May - 13 May	Air Canada
06 May - 20 May	Air Canada
12 May - 19 May	Air Canada	direct
19 May - 26 May	Air Canada	direct
26 May - 02 Jun	Air Canada	direct
06 May - 14 May	Air Canada
13 May - 20 May	Air Canada
25 May - 01 Jun	Air Canada
27 May - 03 Jun	Air Canada
31 May - 07 Jun	TAP
30 May - 06 Jun	Air Canada	direct
29 May - 05 Jun	Air Canada
28 May - 04 Jun	Air Canada

Also check the deals for one-way flights from Montreal to Madrid 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 Montreal to Madrid in May from $705

Return flights