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

Return flights

12 Aug - 18 Sep	Iberia
24 Aug - 14 Sep	Avianca
24 Aug - 12 Sep	Iberia
09 Aug - 16 Aug	Iberia
09 Aug - 18 Aug	Air Europa
11 Aug - 20 Aug	Iberia
19 Aug - 22 Sep	LATAM Airlines Group
17 Aug - 23 Aug	Ryanair
10 Aug - 21 Aug	Iberia
18 Aug - 30 Aug	Ryanair
17 Aug - 25 Aug	Iberia
17 Aug - 30 Aug	Ryanair
19 Aug - 15 Sep	Iberia
17 Aug - 31 Aug	Ryanair
23 Aug - 06 Sep	Ryanair
25 Aug - 05 Sep	Ryanair
17 Aug - 06 Sep	Ryanair
16 Aug - 31 Aug	Ryanair
13 Aug - 03 Sep	Iberia
19 Aug - 02 Sep	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 $1132

Return flights