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

Return flights

16 Apr - 29 Apr	Avianca
16 Apr - 28 Apr	Avianca
13 Apr - 26 Apr	Avianca
10 Apr - 26 Apr	Avianca
02 Apr - 21 Apr	Iberia
24 Apr - 25 Apr	Avianca
16 Apr - 23 Apr	Avianca
09 Apr - 24 Apr	Avianca
21 Apr - 22 May	Avianca
26 Apr - 16 May	Avianca
24 Apr - 09 May	Avianca
21 Apr - 08 May	Avianca
15 Apr - 30 Apr	Avianca
08 Apr - 18 Apr	Avianca
30 Apr - 16 May	Avianca
21 Apr - 07 May	Avianca
29 Apr - 06 May	Avianca
24 Apr - 06 May	Avianca
23 Apr - 11 May	Avianca
30 Apr - 17 May	Avianca

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 862€

Return flights