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

Return flights

25 Mar - 27 Apr	Lufthansa
27 Mar - 05 Apr	Lufthansa
21 Mar - 29 Mar	TAP
01 Mar - 11 Mar	TAP
09 Mar - 30 Mar	SWISS
03 Mar - 16 Mar	Ryanair
04 Mar - 16 Mar	TAP
01 Mar - 21 Mar	TAP
01 Mar - 17 Mar	Ryanair
11 Mar - 25 Mar	TAP
01 Mar - 30 Mar	Ryanair
11 Mar - 31 Mar	Iberia
10 Mar - 13 Apr	Ryanair
10 Mar - 12 Apr	Ryanair
10 Mar - 09 Apr	Ryanair
17 Mar - 13 Apr	Ryanair
10 Mar - 10 Apr	Ryanair
10 Mar - 08 Apr	Ryanair
16 Mar - 06 Apr	Iberia
16 Mar - 12 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 $880

Return flights