AirHint found the following cheapest return flights from Buenos Aires (AEP) to Rio Negro (MDE) in September 2025 (see full year).

Return flights

05 Sep - 29 Sep	LATAM Airlines Group
22 Sep - 29 Sep	LATAM Airlines Group
15 Sep - 19 Sep	LATAM Airlines Group
05 Sep - 10 Sep	LATAM Airlines Group
25 Sep - 04 Oct	LATAM Airlines Group
17 Sep - 30 Sep	LATAM Airlines Group
18 Sep - 25 Sep	LATAM Airlines Group
20 Sep - 24 Sep	LATAM Airlines Group
17 Sep - 21 Sep	Aerolineas Argentinas

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

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 Buenos Aires to Rio Negro in September from $530

Return flights