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

Return flights

02 Dec - 09 Dec	Aeromexico
02 Dec - 13 Dec	Aeromexico
03 Dec - 07 Dec	Copa
06 Dec - 13 Dec	Copa
13 Dec - 19 Dec	Copa
05 Dec - 07 Dec	Copa
31 Dec - 08 Jan	Aeromexico
31 Dec - 12 Jan	Aeromexico
31 Dec - 12 Jan	Wingo	direct
12 Dec - 20 Dec	Aeromexico
24 Dec - 31 Dec	Copa
24 Dec - 29 Dec	Aeromexico
24 Dec - 01 Jan	Copa
24 Dec - 29 Dec	Wingo	direct
28 Dec - 07 Jan	Aeromexico
31 Dec - 07 Jan	Wingo	direct
26 Dec - 01 Jan	Copa
27 Dec - 05 Jan	Aeromexico
25 Dec - 01 Jan	Copa
29 Dec - 05 Jan	Wingo	direct

Also check the deals for one-way flights from Cancun 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 Cancun to Rio Negro in December from $322

Return flights