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

Return flights

03 Dec - 21 Jan	Copa
23 Dec - 16 Jan	Air Transat
11 Dec - 03 Jan	Air Transat
24 Dec - 10 Jan	Air Transat
11 Dec - 02 Jan	Air Transat
23 Dec - 10 Jan	Air Transat
22 Dec - 08 Jan	Air Transat
06 Dec - 02 Jan	Air Transat
05 Dec - 02 Jan	Air Canada
12 Dec - 02 Jan	Air Canada

Also check the deals for one-way flights from Toronto to Rio Negro in December.

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 December from $661

Return flights