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

Return flights

23 Dec - 28 Dec	Frontier Airlines
24 Dec - 28 Dec	Spirit Airlines
15 Dec - 21 Dec	Frontier Airlines
09 Dec - 16 Dec	Spirit Airlines
21 Dec - 04 Jan	Frontier Airlines
16 Dec - 06 Jan	Frontier Airlines
18 Dec - 06 Jan	Frontier Airlines
09 Dec - 16 Dec	Delta	direct
24 Dec - 28 Dec	Delta	direct
23 Dec - 28 Dec	Delta	direct
16 Dec - 06 Jan	LATAM Airlines Group	direct
18 Dec - 06 Jan	LATAM Airlines Group	direct
21 Dec - 04 Jan	Delta	direct

Also check the deals for one-way flights from Atlanta to Quito 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 Quito in December from $471

Return flights