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

Return flights

13 Dec - 13 Jan	Frontier Airlines
30 Dec - 08 Jan	Spirit Airlines
01 Dec - 31 Dec	Spirit Airlines
13 Dec - 23 Dec	Spirit Airlines
12 Dec - 22 Dec	Spirit Airlines
02 Dec - 01 Jan	Spirit Airlines
18 Dec - 25 Dec	LATAM Airlines Group
16 Dec - 06 Jan	Spirit Airlines
22 Dec - 26 Dec	Spirit Airlines
21 Dec - 27 Dec	Spirit Airlines
20 Dec - 27 Dec	LATAM Airlines Group
30 Dec - 04 Jan	Spirit Airlines
21 Dec - 04 Jan	LATAM Airlines Group
19 Dec - 05 Jan	Spirit Airlines
29 Dec - 04 Jan	LATAM Airlines Group
22 Dec - 26 Dec	LATAM Airlines Group	direct
13 Dec - 23 Dec	LATAM Airlines Group	direct
15 Dec - 05 Jan	Spirit Airlines
28 Dec - 03 Jan	Frontier Airlines

Also check the deals for one-way flights from Atlanta to Rio De Janeiro 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 Atlanta to Rio De Janeiro in December from $782

Return flights