AirHint found the following cheapest return flights from Toronto (YYZ) to Rio De Janeiro (GIG) in October 2025 (see full year).

Return flights

15 Oct - 23 Oct	Avianca
07 Oct - 05 Nov	Avianca
07 Oct - 14 Oct	Avianca
21 Oct - 11 Nov	Avianca
01 Oct - 08 Oct	Avianca
22 Oct - 12 Nov	Avianca
18 Oct - 25 Oct	Avianca
16 Oct - 25 Oct	Avianca
14 Oct - 28 Oct	Avianca
06 Oct - 21 Oct	Avianca
14 Oct - 12 Nov	Avianca
01 Oct - 15 Oct	Avianca
10 Oct - 17 Oct	Avianca
06 Oct - 16 Oct	Avianca
18 Oct - 07 Nov	Avianca
21 Oct - 10 Nov	GOL Linhas Aéreas

Also check the deals for one-way flights from Toronto to Rio De Janeiro 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 Rio De Janeiro in October from $422

Return flights