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

Return flights

01 Dec - 08 Dec	Avianca
25 Dec - 31 Dec	Arajet
25 Dec - 07 Jan	Arajet
19 Dec - 31 Dec	Sky Airline
22 Dec - 22 Jan	Air Canada
01 Dec - 12 Dec	Avianca
01 Dec - 14 Dec	Avianca
03 Dec - 12 Dec	Avianca
03 Dec - 14 Dec	Avianca
30 Dec - 06 Jan	Delta
30 Dec - 08 Jan	Delta
29 Dec - 06 Jan	Delta
22 Dec - 07 Jan	Delta
29 Dec - 04 Jan	Delta
19 Dec - 17 Jan	Delta
25 Dec - 07 Jan	Air Canada	direct
10 Dec - 18 Dec	Air Canada	direct
10 Dec - 21 Dec	Air Canada	direct
01 Dec - 12 Dec	Air Canada	direct
21 Dec - 03 Jan	Delta

Also check the deals for one-way flights from Sao Paulo 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.

Book a cheap hotel in Montreal

Cheap car rent in Montreal

Cheapest return flights from Sao Paulo to Montreal in December from $645

Return flights