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

Return flights

22 Aug - 27 Sep	Avianca
22 Aug - 26 Sep	Avianca
27 Aug - 03 Sep	Volaris
26 Aug - 29 Aug	Arajet
26 Aug - 02 Sep	Arajet
24 Aug - 29 Aug	Arajet
27 Aug - 30 Aug	Avianca
25 Aug - 02 Sep	Avianca
28 Aug - 02 Sep	Avianca
27 Aug - 01 Sep	Avianca
23 Aug - 30 Aug	Avianca
25 Aug - 29 Aug	Avianca
20 Aug - 30 Aug	Avianca
20 Aug - 29 Aug	Avianca
27 Aug - 07 Sep	Avianca
31 Aug - 10 Sep	Avianca
20 Aug - 01 Sep	Avianca
19 Aug - 29 Aug	Avianca
24 Aug - 30 Aug	Avianca
24 Aug - 28 Aug	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 551€

Return flights