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

Return flights

10 Oct - 13 Oct	Arajet
10 Oct - 18 Oct	Arajet
09 Oct - 13 Oct	WestJet
30 Oct - 01 Nov	LATAM Airlines Group
30 Oct - 08 Nov	Delta
12 Oct - 02 Nov	Avianca
12 Oct - 01 Nov	Avianca
23 Oct - 01 Nov	Avianca
23 Oct - 02 Nov	Avianca
09 Oct - 13 Oct	Air Canada	direct

Also check the deals for one-way flights from Toronto to Sao Paulo 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 Toronto to Sao Paulo in October from $598

Return flights