Cheapest return flights from Mexico City to Buenos Aires in December from $772

Best time to book flights for Mexico City (MEX) to Buenos Aires (AEP) flights at AirHint

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

Return flights

09 Dec - 15 Dec Arajet
09 Dec - 23 Dec Arajet
18 Dec - 21 Dec Arajet
14 Dec - 29 Dec Arajet
12 Dec - 21 Dec Viva Aerobus
18 Dec - 22 Dec Arajet
10 Dec - 17 Dec Viva Aerobus
16 Dec - 21 Dec Viva Aerobus
17 Dec - 21 Dec Viva Aerobus
24 Dec - 10 Jan Volaris
20 Dec - 09 Jan Avianca
23 Dec - 02 Jan Volaris
01 Dec - 12 Dec LATAM Airlines Group
02 Dec - 02 Jan Arajet
25 Dec - 08 Jan Arajet
25 Dec - 02 Jan Arajet
10 Dec - 21 Jan LATAM Airlines Group
27 Dec - 10 Jan LATAM Airlines Group
08 Dec - 05 Jan LATAM Airlines Group
14 Dec - 17 Jan LATAM Airlines Group

Also check the deals for one-way flights from Mexico City to Buenos Aires in December.

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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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