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

Return flights

15 Oct - 12 Nov	Spirit Airlines
06 Oct - 31 Oct	Frontier Airlines
11 Oct - 18 Oct	Frontier Airlines
13 Oct - 18 Oct	Frontier Airlines
23 Oct - 27 Oct	Spirit Airlines
13 Oct - 20 Oct	Spirit Airlines
13 Oct - 20 Oct	Delta	direct
15 Oct - 12 Nov	LATAM Airlines Group	direct
13 Oct - 17 Oct	Delta
12 Oct - 16 Oct	Delta
12 Oct - 17 Oct	Delta
12 Oct - 18 Oct	Delta

Also check the deals for one-way flights from Atlanta to Rio De Janeiro in October.

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 October from 527€

Return flights