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

Return flights

09 Oct - 24 Oct	Arajet
09 Oct - 22 Oct	Arajet
23 Oct - 29 Oct	Arajet
19 Oct - 29 Oct	Arajet
02 Oct - 17 Oct	Arajet
23 Oct - 31 Oct	Arajet
03 Oct - 13 Oct	Avianca
01 Oct - 15 Oct	Avianca
08 Oct - 15 Oct	Avianca
06 Oct - 24 Oct	Avianca
29 Oct - 05 Nov	Avianca
31 Oct - 07 Nov	Avianca
26 Oct - 03 Nov	Arajet
31 Oct - 06 Nov	Delta
24 Oct - 04 Nov	Delta
31 Oct - 07 Nov	Air Canada	direct
29 Oct - 08 Nov	Delta
23 Oct - 01 Nov	Delta
23 Oct - 01 Nov	Air Canada	direct
29 Oct - 08 Nov	Air Canada	direct

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 $473

Return flights