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

Return flights

20 Aug - 28 Aug	Avianca
21 Aug - 28 Aug	Copa
10 Aug - 16 Aug	Avianca
29 Aug - 29 Sep	Copa
13 Aug - 28 Aug	Air Canada
22 Aug - 28 Aug	Copa
12 Aug - 19 Aug	Copa
13 Aug - 17 Aug	Delta
21 Aug - 31 Aug	Delta
15 Aug - 06 Sep	Delta
21 Aug - 08 Sep	Delta
22 Aug - 29 Aug	LATAM Airlines Group
12 Aug - 02 Sep	Copa
05 Aug - 12 Aug	Avianca
28 Aug - 07 Sep	Copa
04 Aug - 01 Sep	Avianca
28 Aug - 01 Sep	Delta

Also check the deals for one-way flights from Toronto to Sao Paulo in August.

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 August from $558

Return flights