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

Return flights

31 Aug - 15 Sep	Volaris
05 Aug - 16 Aug	Volaris
05 Aug - 12 Aug	Volaris
07 Aug - 16 Aug	Volaris
20 Aug - 27 Aug	Avianca
04 Aug - 12 Aug	Volaris
24 Aug - 10 Sep	Avianca
06 Aug - 20 Aug	Avianca
29 Aug - 20 Sep	Avianca
30 Aug - 18 Sep	Avianca
27 Aug - 11 Sep	Avianca
31 Aug - 18 Sep	Avianca
25 Aug - 08 Sep	Avianca
05 Aug - 20 Aug	Avianca
08 Aug - 21 Aug	Avianca
30 Aug - 05 Sep	Avianca
22 Aug - 26 Aug	Avianca
12 Aug - 19 Aug	Avianca
31 Aug - 19 Sep	Avianca
29 Aug - 08 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 $693

Return flights