Cheapest return flights from Rio De Janeiro to Buenos Aires in September from $313

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

Return flights

17 Sep - 21 Sep Azul Airlines
07 Sep - 17 Sep Azul Airlines
20 Sep - 27 Sep Azul Airlines
01 Sep - 08 Sep LATAM Airlines Group
24 Sep - 29 Sep Azul Airlines
17 Sep - 27 Sep Azul Airlines
01 Sep - 07 Sep LATAM Airlines Group
05 Sep - 08 Sep Azul Airlines
02 Sep - 09 Sep Azul Airlines
05 Sep - 07 Sep LATAM Airlines Group
29 Sep - 13 Oct LATAM Airlines Group

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

Skyscanner

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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