Cheapest return flights from Rio De Janeiro to Buenos Aires in September from $345

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

Return flights

26 Sep - 29 Sep LATAM Airlines Group
27 Sep - 04 Oct LATAM Airlines Group
30 Sep - 07 Oct LATAM Airlines Group
06 Sep - 09 Sep LATAM Airlines Group
09 Sep - 16 Sep LATAM Airlines Group
24 Sep - 24 Oct LATAM Airlines Group
30 Sep - 03 Oct LATAM Airlines Group
27 Sep - 01 Oct LATAM Airlines Group
16 Sep - 22 Sep GOL Linhas Aéreas
13 Sep - 20 Sep LATAM Airlines Group
10 Sep - 17 Sep LATAM Airlines Group
10 Sep - 14 Sep LATAM Airlines Group
23 Sep - 30 Sep LATAM Airlines Group
20 Sep - 26 Sep GOL Linhas Aéreas
27 Sep - 05 Oct LATAM Airlines Group
22 Sep - 29 Sep GOL Linhas Aéreas
16 Sep - 13 Oct GOL Linhas Aéreas
24 Sep - 03 Oct GOL Linhas Aéreas
25 Sep - 01 Oct GOL Linhas Aéreas
23 Sep - 03 Oct GOL Linhas Aéreas

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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