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

Return flights

04 Oct - 24 Oct	Arajet
03 Oct - 10 Nov	Arajet
29 Oct - 13 Nov	Copa
17 Oct - 26 Oct	Arajet
13 Oct - 26 Oct	GOL Linhas Aéreas
19 Oct - 26 Oct	GOL Linhas Aéreas
15 Oct - 06 Nov	Arajet
10 Oct - 19 Oct	Delta
10 Oct - 13 Oct	Delta
09 Oct - 12 Oct	Delta
08 Oct - 23 Oct	Delta
03 Oct - 08 Oct	Delta
13 Oct - 19 Oct	Delta
01 Oct - 01 Nov	Delta
29 Oct - 13 Nov	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 493€

Return flights