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

Return flights

15 Mar - 22 Mar	Delta
11 Mar - 16 Mar	Iberia
11 Mar - 17 Mar	Iberia
04 Mar - 15 Mar	Iberia
04 Mar - 11 Mar	Iberia
04 Mar - 18 Mar	Iberia
09 Mar - 22 Mar	Delta
09 Mar - 16 Mar	Delta
05 Mar - 31 Mar	American Airlines
12 Mar - 19 Mar	American Airlines
19 Mar - 11 Apr	Avianca
04 Mar - 02 Apr	Avianca
14 Mar - 18 Apr	Avianca
16 Mar - 15 Apr	Avianca
10 Mar - 09 Apr	Avianca
17 Mar - 15 Apr	Avianca
24 Mar - 15 Apr	Avianca
14 Mar - 15 Apr	Avianca
16 Mar - 26 Apr	Avianca
11 Mar - 13 Apr	Iberia

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.

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Cheapest return flights from Madrid to Buenos Aires in March from 771€

Return flights