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

Return flights

05 Dec - 13 Jan	Arajet
05 Dec - 27 Dec	Arajet
03 Dec - 16 Jan	Avianca
10 Dec - 27 Dec	Avianca
05 Dec - 06 Jan	Arajet
15 Dec - 27 Dec	Air Transat
12 Dec - 06 Jan	Arajet
18 Dec - 26 Dec	WestJet
15 Dec - 29 Dec	United
24 Dec - 31 Dec	United
23 Dec - 10 Jan	Porter Airlines (Canada) Ltd
26 Dec - 06 Jan	Arajet
27 Dec - 02 Jan	Air Transat
17 Dec - 29 Dec	Avianca
12 Dec - 05 Jan	Avianca
05 Dec - 05 Jan	Avianca
26 Dec - 08 Jan	Avianca

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 442€

Return flights