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

Return flights

26 Sep - 29 Sep	Copa
30 Sep - 10 Oct	LATAM Airlines Group
30 Sep - 03 Oct	LATAM Airlines Group
24 Sep - 30 Sep	Wingo
23 Sep - 28 Sep	JetSmart
25 Sep - 02 Oct	Copa
25 Sep - 03 Oct	Copa
26 Sep - 30 Sep	Copa
29 Sep - 09 Oct	LATAM Airlines Group
18 Sep - 29 Sep	Copa
19 Sep - 26 Sep	Avianca
22 Sep - 29 Sep	JetSmart
19 Sep - 28 Sep	Avianca
22 Sep - 27 Oct	JetSmart
22 Sep - 28 Oct	JetSmart
18 Sep - 28 Sep	Copa
22 Sep - 28 Sep	JetSmart
26 Sep - 20 Oct	Copa

Also check the deals for one-way flights from Rio Negro to Buenos Aires 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 Rio Negro to Buenos Aires in September from $555

Return flights