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

Return flights

18 Aug - 25 Aug	TAP
31 Aug - 24 Sep	TAP
28 Aug - 11 Sep	TAP
23 Aug - 27 Sep	TAP
21 Aug - 24 Sep	Azul Airlines
27 Aug - 24 Sep	Azul Airlines
28 Aug - 24 Sep	Azul Airlines
26 Aug - 23 Sep	TAP
28 Aug - 28 Sep	Azul Airlines
31 Aug - 20 Sep	easyJet
21 Aug - 23 Sep	Azul Airlines
18 Aug - 24 Aug	TAP
20 Aug - 24 Aug	TAP
20 Aug - 30 Aug	Azul Airlines
25 Aug - 31 Aug	TAP
19 Aug - 27 Aug	Iberia
21 Aug - 31 Aug	TAP
11 Aug - 17 Aug	TAP
17 Aug - 23 Aug	TAP
25 Aug - 30 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 766€

Return flights