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

Return flights

09 Dec - 14 Dec	Copa
05 Dec - 09 Dec	Arajet
02 Dec - 08 Dec	Avianca	direct
03 Dec - 08 Dec	Avianca	direct
09 Dec - 14 Dec	Avianca	direct
07 Dec - 14 Dec	Avianca	direct
06 Dec - 09 Dec	American Airlines	direct
06 Dec - 10 Dec	American Airlines	direct
09 Dec - 16 Dec	Copa
05 Dec - 09 Dec	American Airlines	direct
29 Dec - 15 Jan	Avianca
08 Dec - 22 Jan	Arajet
30 Dec - 17 Jan	Avianca
06 Dec - 11 Jan	Avianca
17 Dec - 15 Jan	Avianca
17 Dec - 20 Jan	Avianca
25 Dec - 01 Jan	Avianca
17 Dec - 15 Jan	Avianca	direct
05 Dec - 05 Jan	American Airlines	direct
06 Dec - 06 Jan	American Airlines	direct

Also check the deals for one-way flights from Miami 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 Miami to Rio Negro in December from $254

Return flights