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

Return flights

15 Apr - 28 Apr	Azul Airlines
09 Apr - 25 Apr	Azul Airlines
11 Apr - 26 Apr	Azul Airlines
15 Apr - 15 May	Azul Airlines
15 Apr - 29 Apr	Azul Airlines
20 Apr - 27 Apr	TAP
09 Apr - 21 Apr	Azul Airlines
01 Apr - 26 Apr	Azul Airlines
10 Apr - 25 Apr	Iberia
24 Apr - 16 May	Air Europa
02 Apr - 09 Apr	Azul Airlines
01 Apr - 15 Apr	Azul Airlines
19 Apr - 05 May	TAP
16 Apr - 04 May	Azul Airlines
18 Apr - 06 May	Azul Airlines
17 Apr - 06 May	Avianca
30 Apr - 16 May	Royal Air Maroc
17 Apr - 04 May	Avianca
30 Apr - 31 May	Avianca
19 Apr - 06 May	TAP

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

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 April from $954

Return flights