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

Return flights

23 Aug - 26 Sep	Azul Airlines
29 Aug - 27 Sep	Azul Airlines
25 Aug - 27 Sep	Azul Airlines
26 Aug - 17 Sep	Avianca
23 Aug - 27 Sep	Azul Airlines
25 Aug - 25 Sep	Azul Airlines
29 Aug - 21 Sep	Azul Airlines
31 Aug - 16 Sep	Azul Airlines
31 Aug - 14 Sep	Azul Airlines
22 Aug - 24 Sep	Air Europa
25 Aug - 31 Aug	Azul Airlines
19 Aug - 26 Aug	Air France
24 Aug - 31 Aug	Azul Airlines
22 Aug - 30 Aug	Air Europa
26 Aug - 28 Aug	Azul Airlines
16 Aug - 23 Aug	LATAM Airlines Group
20 Aug - 31 Aug	Royal Air Maroc
25 Aug - 29 Aug	Azul Airlines
18 Aug - 31 Aug	TAP
17 Aug - 29 Aug	LATAM Airlines Group

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 932€

Return flights