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

Return flights

24 Dec - 31 Dec	United
25 Dec - 05 Jan	Frontier Airlines
19 Dec - 03 Jan	Spirit Airlines
23 Dec - 04 Jan	Spirit Airlines
24 Dec - 04 Jan	Spirit Airlines
24 Dec - 05 Jan	Spirit Airlines
24 Dec - 03 Jan	Spirit Airlines
19 Dec - 31 Dec	Spirit Airlines
19 Dec - 05 Jan	Spirit Airlines
23 Dec - 31 Dec	Spirit Airlines
23 Dec - 05 Jan	Spirit Airlines
25 Dec - 03 Jan	Spirit Airlines
24 Dec - 27 Dec	Spirit Airlines
19 Dec - 27 Dec	Spirit Airlines
23 Dec - 27 Dec	Spirit Airlines
25 Dec - 27 Dec	Spirit Airlines

Also check the deals for one-way flights from Atlanta 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.

Book a cheap hotel in Rio Negro

Cheap car rent in Rio Negro

Cheapest return flights from Atlanta to Rio Negro in December from 634€

Return flights