Cheapest return flights from Mexico City to Buenos Aires in December from $622

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

Return flights

02 Dec - 10 Dec LATAM Airlines Group
04 Dec - 11 Dec LATAM Airlines Group
08 Dec - 15 Dec LATAM Airlines Group
08 Dec - 16 Dec LATAM Airlines Group
08 Dec - 17 Dec LATAM Airlines Group
03 Dec - 15 Dec LATAM Airlines Group
08 Dec - 25 Dec LATAM Airlines Group
02 Dec - 11 Dec LATAM Airlines Group
01 Dec - 15 Dec LATAM Airlines Group
01 Dec - 16 Dec LATAM Airlines Group
23 Dec - 31 Jan LATAM Airlines Group
29 Dec - 31 Jan LATAM Airlines Group
05 Dec - 29 Jan LATAM Airlines Group
29 Dec - 30 Jan Avianca
09 Dec - 11 Jan Arajet
16 Dec - 15 Jan Arajet
24 Dec - 07 Jan Arajet
16 Dec - 20 Jan LATAM Airlines Group
04 Dec - 07 Jan Arajet
31 Dec - 05 Jan Avianca

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

Skyscanner

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.

Book a cheap hotel in Buenos Aires

Cheap car rent in Buenos Aires

Feel free to contact us with any feedback or request another flight research.