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

Return flights

19 Mar - 22 Mar	Air Canada
06 Mar - 22 Mar	Air Canada
07 Mar - 17 Mar	ITA Airways
15 Mar - 28 Mar	TAP
15 Mar - 31 Mar	TAP
19 Mar - 29 Mar	TAP
19 Mar - 23 Mar	TAP
12 Mar - 19 Mar	TAP
12 Mar - 15 Mar	TAP
16 Mar - 22 Mar	TAP
23 Mar - 23 Apr	TAP
16 Mar - 01 Apr	TAP
12 Mar - 04 Apr	Avianca
08 Mar - 03 Apr	Avianca
12 Mar - 03 Apr	Avianca
11 Mar - 03 Apr	Avianca
11 Mar - 07 Apr	Avianca
04 Mar - 04 Apr	Azul Airlines
17 Mar - 04 Apr	Azul Airlines
23 Mar - 06 Apr	TAP

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 $901

Return flights