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

Return flights

03 Mar - 16 Mar	Lufthansa
05 Mar - 01 Apr	Air Canada
01 Mar - 10 Mar	Azul Airlines
16 Mar - 23 Mar	TAP
16 Mar - 24 Mar	TAP
09 Mar - 30 Mar	SWISS
07 Mar - 22 Mar	TAP
05 Mar - 19 Mar	TAP
02 Mar - 12 Mar	TAP
03 Mar - 19 Mar	TAP
02 Mar - 15 Mar	TAP
01 Mar - 30 Apr	Ryanair
30 Mar - 28 Apr	TAP
19 Mar - 06 Apr	Ryanair
18 Mar - 09 Apr	Iberia
19 Mar - 03 Apr	Ryanair
19 Mar - 24 Apr	Ryanair
24 Mar - 06 Apr	Iberia
23 Mar - 05 Apr	Iberia
01 Mar - 01 Apr	Ryanair

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 789€

Return flights