Cheapest one-way flights from Mexico City to Buenos Aires in December from $353
AirHint found the following cheapest one-way flights from Mexico City (MEX) to Buenos Aires (AEP) in December 2025 (see full year).
One-Way flights
| 23 Dec | Arajet | ||
| 21 Dec | Arajet | ||
| 03 Dec | Avianca | ||
| 17 Dec | Viva Aerobus | ||
| 20 Dec | Viva Aerobus | ||
| 15 Dec | Viva Aerobus | ||
| 28 Dec | Aeromexico |
Also check the deals for return flights from Mexico City to Buenos Aires in December.
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.
