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

Return flights

23 Oct - 30 Oct	Air Canada	direct
15 Oct - 22 Oct	Air Canada	direct
22 Oct - 29 Oct	Air Canada
20 Oct - 29 Oct	Air Canada
14 Oct - 21 Oct	Air Canada
08 Oct - 22 Oct	Air Canada
06 Oct - 20 Oct	Air Canada
30 Oct - 17 Nov	Air Canada
28 Oct - 05 Nov	GOL Linhas Aéreas
02 Oct - 24 Oct	Air Canada
08 Oct - 20 Oct	Air Canada
01 Oct - 15 Oct	Air Canada
14 Oct - 01 Nov	Delta
02 Oct - 07 Nov	Copa
18 Oct - 01 Nov	Delta
18 Oct - 02 Nov	Delta
25 Oct - 01 Nov	Avianca
24 Oct - 01 Nov	Avianca

Also check the deals for one-way flights from Sao Paulo to Montreal in October.

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 Sao Paulo to Montreal in October from $600

Return flights