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

Return flights

01 Aug - 07 Aug	Ryanair
01 Aug - 10 Aug	LATAM Airlines Group
17 Aug - 23 Aug	Avianca
12 Aug - 22 Aug	Avianca
17 Aug - 22 Aug	Avianca
11 Aug - 16 Aug	Avianca
12 Aug - 27 Aug	Avianca
05 Aug - 12 Aug	Avianca
14 Aug - 29 Aug	Avianca
17 Aug - 31 Aug	Avianca
19 Aug - 02 Sep	Avianca
20 Aug - 02 Sep	Avianca
21 Aug - 02 Sep	Avianca
21 Aug - 03 Sep	Avianca
18 Aug - 01 Sep	Avianca

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 1136€

Return flights