AirHint found the following cheapest return flights from Atlanta (ATL) to Mexico City (MEX) in August 2025 (see full year).

Return flights

18 Aug - 23 Aug	Spirit Airlines
05 Aug - 07 Aug	Spirit Airlines
28 Aug - 02 Sep	Spirit Airlines
12 Aug - 24 Aug	Spirit Airlines
18 Aug - 25 Aug	Spirit Airlines
07 Aug - 14 Aug	Spirit Airlines
28 Aug - 01 Sep	Spirit Airlines
20 Aug - 28 Aug	Spirit Airlines
12 Aug - 15 Aug	Spirit Airlines
18 Aug - 26 Aug	Spirit Airlines
11 Aug - 15 Aug	Spirit Airlines
01 Aug - 05 Aug	Spirit Airlines
28 Aug - 02 Sep	Aeromexico	direct

Also check the deals for one-way flights from Atlanta to Mexico City in August.

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 Mexico City

Cheap car rent in Mexico City

Cheapest return flights from Atlanta to Mexico City in August from $273

Return flights