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

Return flights

04 Sep - 12 Sep	Arajet
05 Sep - 12 Sep	Arajet
21 Sep - 01 Oct	Avianca
18 Sep - 03 Oct	Arajet
22 Sep - 01 Oct	Avianca
20 Sep - 01 Oct	Avianca
23 Sep - 01 Oct	Avianca
17 Sep - 24 Sep	Avianca
08 Sep - 24 Sep	Avianca
13 Sep - 24 Sep	Avianca
10 Sep - 17 Sep	Avianca
29 Sep - 15 Oct	Arajet
25 Sep - 02 Oct	Arajet
10 Sep - 24 Sep	Avianca
25 Sep - 09 Oct	Arajet
06 Sep - 08 Oct	Avianca
30 Sep - 10 Oct	Avianca
06 Sep - 12 Sep	Avianca
19 Sep - 29 Sep	Avianca
02 Sep - 07 Sep	Avianca

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

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 Toronto in September from $539

Return flights