Cheapest one-way flights from Madrid to Buenos Aires in September from $585

AirHint found the following cheapest one-way flights from Madrid (MAD) to Buenos Aires (EZE) in September 2025 (see full year).

One-Way flights

23 Sep TAP
28 Sep Avianca
30 Sep Avianca
29 Sep WORLD2FLY
25 Sep Ethiopian Airlines
20 Sep Azul Airlines
24 Sep Plus Ultra Lineas Aereas
26 Sep Avianca
20 Sep Iberia direct
26 Sep Aerolineas Argentinas direct

Also check the deals for return flights from Madrid to Buenos Aires in September.

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.