AirHint found the following cheapest return flights from Madrid (MAD) to Buenos Aires (AEP) in August 2025 (see full year).

Return flights

25 Aug - 20 Sep	Ryanair
28 Aug - 24 Sep	Azul Airlines
24 Aug - 25 Sep	Azul Airlines
20 Aug - 26 Sep	Azul Airlines
29 Aug - 27 Sep	Azul Airlines
28 Aug - 13 Sep	Azul Airlines
21 Aug - 06 Sep	TAP
18 Aug - 26 Sep	Royal Air Maroc
29 Aug - 22 Sep	Azul Airlines
21 Aug - 21 Sep	Azul Airlines
18 Aug - 24 Aug	TAP
18 Aug - 25 Aug	TAP
14 Aug - 17 Aug	Avianca
15 Aug - 22 Aug	TAP
17 Aug - 21 Aug	TAP
14 Aug - 20 Aug	TAP
10 Aug - 17 Aug	Vueling Airlines
14 Aug - 23 Aug	TAP
14 Aug - 21 Aug	TAP
11 Aug - 18 Aug	TAP

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

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 August from $1081

Return flights