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

Return flights

24 Dec - 31 Dec	Delta
23 Dec - 30 Dec	Delta
26 Dec - 30 Jan	Copa
28 Dec - 08 Jan	Copa
28 Dec - 19 Jan	Copa
25 Dec - 06 Jan	Copa
25 Dec - 07 Jan	Copa
22 Dec - 13 Jan	Copa
22 Dec - 20 Jan	Copa
22 Dec - 09 Jan	LATAM Airlines Group
24 Dec - 06 Jan	Copa
28 Dec - 07 Jan	Delta
23 Dec - 29 Dec	Delta
24 Dec - 31 Dec	Air Canada	direct
21 Dec - 25 Dec	Delta
20 Dec - 27 Dec	United
23 Dec - 29 Dec	Air Canada	direct
20 Dec - 27 Dec	Air Canada	direct
21 Dec - 25 Dec	Air Canada	direct
23 Dec - 30 Dec	GOL Linhas Aéreas	direct

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 649€

Return flights