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

Return flights

13 Aug - 23 Aug	Arajet
30 Aug - 10 Sep	Arajet
06 Aug - 13 Aug	Arajet
13 Aug - 18 Aug	Arajet
23 Aug - 26 Aug	Avianca
17 Aug - 23 Aug	Avianca
14 Aug - 19 Aug	Avianca
18 Aug - 30 Sep	Avianca
26 Aug - 09 Sep	Avianca
28 Aug - 03 Sep	Avianca
10 Aug - 14 Aug	LATAM Airlines Group
14 Aug - 23 Aug	Arajet
24 Aug - 31 Aug	Arajet
14 Aug - 24 Aug	LATAM Airlines Group
29 Aug - 07 Sep	LATAM Airlines Group
31 Aug - 10 Sep	Arajet
12 Aug - 08 Sep	Avianca
22 Aug - 02 Sep	LATAM Airlines Group
24 Aug - 02 Sep	LATAM Airlines Group
27 Aug - 07 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 $619

Return flights