AirHint found the following cheapest return flights from Madrid (MAD) to Buenos Aires (AEP) in March 2026 (see full year).

Return flights

05 Mar - 12 Mar	Avianca
08 Mar - 15 Mar	Avianca
02 Mar - 10 Mar	Avianca
02 Mar - 15 Mar	Avianca
04 Mar - 08 Mar	Avianca
05 Mar - 10 Mar	Avianca
23 Mar - 12 Apr	Lufthansa
11 Mar - 15 Mar	Avianca
02 Mar - 07 Mar	Avianca
08 Mar - 16 Mar	Avianca
01 Mar - 15 Mar	Avianca
02 Mar - 13 Apr	Avianca
16 Mar - 26 Apr	Avianca
18 Mar - 08 Apr	Avianca
16 Mar - 07 Apr	Avianca
16 Mar - 06 Apr	Avianca
14 Mar - 14 Apr	Avianca
17 Mar - 14 Apr	Avianca
19 Mar - 10 Apr	Avianca
16 Mar - 13 Apr	Avianca

Also check the deals for one-way flights from Madrid to Buenos Aires in March.

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

Cheapest return flights from Madrid to Buenos Aires in March from 696€

Return flights