AirHint found the following cheapest return flights from Montreal (YUL) to Sao Paulo (GRU) in December 2026 (see full year).

Return flights

02 Dec - 06 Dec	Delta
03 Dec - 07 Dec	Delta
02 Dec - 09 Dec	Copa
01 Dec - 08 Dec	Copa
04 Dec - 11 Dec	Avianca
11 Dec - 22 Jan	Avianca
05 Dec - 12 Dec	United
03 Dec - 07 Dec	Air Canada	direct
04 Dec - 11 Dec	Air Canada	direct
05 Dec - 12 Dec	Air Canada	direct
15 Dec - 03 Jan	WestJet
27 Dec - 03 Jan	Avianca
17 Dec - 02 Jan	Delta
27 Dec - 03 Jan	Air Canada	direct
18 Dec - 08 Jan	Air Canada
17 Dec - 02 Jan	Air Canada	direct
19 Dec - 03 Jan	Air Canada	direct

Also check the deals for one-way flights from Montreal to Sao Paulo 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 Sao Paulo in December from 528€

Return flights