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

Return flights

01 Dec - 10 Dec	TAP
03 Dec - 10 Dec	TAP
03 Dec - 11 Dec	TAP
01 Dec - 25 Jan	TAP
08 Dec - 15 Dec	TAP
10 Dec - 17 Dec	TAP
07 Dec - 14 Dec	TAP
02 Dec - 08 Dec	British Airways
02 Dec - 15 Dec	British Airways
09 Dec - 16 Dec	British Airways
05 Dec - 12 Dec	British Airways
31 Dec - 08 Jan	Air Canada
07 Dec - 05 Jan	TAP
12 Dec - 11 Jan	SWISS
16 Dec - 08 Jan	Air Canada
31 Dec - 08 Jan	Lufthansa	direct
29 Dec - 05 Jan	Air Transat
30 Dec - 07 Jan	Air France
31 Dec - 07 Jan	Air Canada
28 Dec - 06 Jan	TAP

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

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 December from $414

Return flights