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

Return flights

25 Sep - 09 Oct	Arajet
20 Sep - 22 Sep	Air Canada
28 Sep - 06 Oct	Air Canada	direct
18 Sep - 23 Sep	Air Canada
18 Sep - 23 Sep	Air Canada	direct
18 Sep - 09 Oct	Air Canada
30 Sep - 13 Oct	Avianca
27 Sep - 04 Oct	Air Canada	direct
18 Sep - 09 Oct	Air Canada	direct
26 Sep - 25 Oct	Copa
18 Sep - 03 Oct	Arajet
20 Sep - 27 Sep	Air Canada
22 Sep - 22 Oct	Copa
19 Sep - 27 Sep	Copa
21 Sep - 30 Sep	Copa
24 Sep - 29 Sep	Copa
23 Sep - 30 Sep	Copa
22 Sep - 28 Sep	Copa
19 Sep - 05 Oct	Copa
18 Sep - 25 Sep	Arajet

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 $594

Return flights