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

Return flights

31 Dec - 12 Jan	United
31 Dec - 14 Jan	Air Canada
30 Dec - 13 Jan	Air Canada
31 Dec - 07 Jan	Air Canada
30 Dec - 09 Jan	Air Canada
30 Dec - 14 Jan	United
30 Dec - 10 Jan	United
29 Dec - 14 Jan	Air Canada
30 Dec - 07 Jan	Air Canada
29 Dec - 08 Jan	Air Canada
27 Dec - 30 Dec	Air Canada
28 Dec - 29 Dec	Air Canada	direct
27 Dec - 30 Dec	Air Transat	direct

Also check the deals for one-way flights from Montreal to Puerto Vallarta 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 Puerto Vallarta in December from 278€

Return flights