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

Return flights

01 Dec - 08 Dec	TAP
03 Dec - 07 Dec	TAP
14 Dec - 11 Jan	TAP
13 Dec - 11 Jan	TAP
01 Dec - 05 Dec	TAP
18 Dec - 11 Jan	TAP
12 Dec - 26 Dec	TAP
21 Dec - 11 Jan	TAP
17 Dec - 10 Jan	Air France
14 Dec - 07 Jan	SWISS
14 Dec - 02 Jan	TAP
14 Dec - 04 Jan	TAP
14 Dec - 07 Jan	Air Canada	direct
11 Dec - 02 Jan	TAP
12 Dec - 26 Dec	Lufthansa	direct

Also check the deals for one-way flights from Rome to Montreal 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 Rome to Montreal in December from $433

Return flights