AirHint found the following cheapest return flights from Toronto (YYZ) to Rio Negro (MDE) in August 2025 (see full year).

Return flights

26 Aug - 05 Sep	Flair Airlines
21 Aug - 28 Aug	Avianca
28 Aug - 09 Sep	Avianca
12 Aug - 28 Aug	Avianca
23 Aug - 28 Aug	Avianca
22 Aug - 28 Aug	Avianca
15 Aug - 19 Aug	Avianca
28 Aug - 07 Sep	Flair Airlines
13 Aug - 20 Aug	Porter Airlines (Canada) Ltd
22 Aug - 29 Aug	Avianca
17 Aug - 30 Aug	Avianca
22 Aug - 30 Aug	Avianca
23 Aug - 30 Aug	Avianca
29 Aug - 02 Sep	Avianca
28 Aug - 01 Sep	Flair Airlines

Also check the deals for one-way flights from Toronto to Rio Negro 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 Rio Negro in August from 341€

Return flights