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

Return flights

25 Sep - 31 Oct	Arajet
18 Sep - 22 Sep	Arajet
18 Sep - 23 Sep	Arajet
19 Sep - 26 Sep	Arajet
11 Sep - 28 Sep	Arajet
12 Sep - 19 Sep	Arajet
05 Sep - 17 Sep	Arajet
13 Sep - 24 Sep	Avianca
11 Sep - 18 Sep	Avianca
15 Sep - 24 Sep	Avianca
10 Sep - 24 Sep	Avianca
15 Sep - 03 Oct	Avianca
30 Sep - 10 Oct	Avianca
24 Sep - 11 Oct	Avianca
10 Sep - 05 Oct	Avianca
12 Sep - 05 Oct	Avianca
12 Sep - 13 Oct	Avianca
18 Sep - 03 Oct	Avianca
12 Sep - 12 Oct	Avianca
29 Sep - 10 Oct	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 420€

Return flights