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

Return flights

06 Aug - 18 Aug	Arajet
24 Aug - 29 Aug	Arajet
23 Aug - 28 Aug	Avianca
13 Aug - 31 Aug	Avianca
19 Aug - 22 Aug	Avianca
21 Aug - 31 Aug	Avianca
20 Aug - 25 Aug	Avianca
18 Aug - 29 Aug	Avianca
21 Aug - 28 Aug	Avianca
23 Aug - 27 Aug	Avianca
29 Aug - 01 Sep	Avianca
26 Aug - 11 Sep	Avianca
30 Aug - 29 Sep	Avianca
31 Aug - 29 Sep	Avianca
31 Aug - 28 Sep	Avianca
31 Aug - 05 Sep	Avianca
31 Aug - 07 Sep	Avianca
22 Aug - 27 Sep	Avianca
20 Aug - 01 Sep	Avianca
13 Aug - 26 Sep	Avianca

Also check the deals for one-way flights from Mexico City to Buenos Aires 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.

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Cheapest return flights from Mexico City to Buenos Aires in August from 492€

Return flights