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

Return flights

24 Aug - 31 Aug	Arajet
17 Aug - 29 Aug	Arajet
31 Aug - 13 Sep	Arajet
20 Aug - 04 Sep	Avianca
06 Aug - 20 Aug	LATAM Airlines Group
28 Aug - 06 Sep	Avianca
25 Aug - 06 Sep	Avianca
11 Aug - 22 Aug	Avianca
14 Aug - 16 Aug	Avianca
11 Aug - 18 Aug	Avianca
11 Aug - 16 Aug	Avianca
21 Aug - 07 Sep	Avianca
21 Aug - 31 Aug	Avianca
21 Aug - 28 Aug	LATAM Airlines Group
18 Aug - 29 Aug	LATAM Airlines Group
18 Aug - 29 Sep	LATAM Airlines Group
24 Aug - 06 Sep	LATAM Airlines Group
25 Aug - 08 Sep	LATAM Airlines Group
16 Aug - 04 Sep	LATAM Airlines Group
27 Aug - 03 Sep	LATAM Airlines Group

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 521€

Return flights