AirHint found the following cheapest return flights from Mexico City (MEX) to Buenos Aires (EZE) in August 2026 (see full year).

Return flights

24 Aug - 12 Sep	Arajet
30 Aug - 12 Sep	Arajet
20 Aug - 29 Aug	Arajet
18 Aug - 25 Aug	Avianca
20 Aug - 27 Aug	Avianca
21 Aug - 25 Aug	Avianca
20 Aug - 24 Aug	Avianca
17 Aug - 24 Aug	Avianca
19 Aug - 26 Aug	Avianca
21 Aug - 29 Aug	Avianca
13 Aug - 01 Sep	Avianca
08 Aug - 15 Aug	Arajet
24 Aug - 30 Aug	Avianca
30 Aug - 20 Sep	Viva
30 Aug - 17 Sep	Viva
30 Aug - 18 Sep	Viva
30 Aug - 14 Sep	Viva
30 Aug - 15 Sep	Viva
24 Aug - 14 Sep	Viva
18 Aug - 02 Sep	Viva

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 613€

Return flights