AirHint found the following cheapest one-way flights from Madrid (MAD) to Buenos Aires (AEP) in December 2025 (see full year).
One-Way flights
| 04 Dec | Azul Airlines | ||
| 06 Dec | Azul Airlines | ||
| 02 Dec | Iberia | ||
| 12 Dec | Ryanair | ||
| 08 Dec | Iberia | ||
| 03 Dec | TAP | ||
| 01 Dec | TAP | ||
| 05 Dec | TAP | ||
| 09 Dec | Royal Air Maroc | ||
| 15 Dec | Royal Air Maroc |
Also check the deals for return flights from Madrid 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.
Find us on social media