Cheapest return flights from Madrid to Buenos Aires in September from $1103

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

Return flights

01 Sep - 18 Sep Iberia
14 Sep - 21 Sep Ryanair
11 Sep - 21 Sep Ryanair
11 Sep - 20 Sep Ryanair
03 Sep - 20 Sep Iberia
10 Sep - 20 Sep Ryanair
05 Sep - 12 Sep Iberia
07 Sep - 21 Sep Royal Air Maroc
01 Sep - 30 Sep Avianca
27 Sep - 11 Oct Avianca
07 Sep - 23 Sep Wizz Air Malta
28 Sep - 11 Oct Avianca

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

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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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