Cheapest return flights from Rio De Janeiro to Buenos Aires in September from $323

Best time to book flights for Rio De Janeiro (SDU) to Buenos Aires (AEP) flights at AirHint

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

Return flights

30 Sep - 21 Oct GOL Linhas Aéreas
10 Sep - 15 Sep GOL Linhas Aéreas
16 Sep - 10 Oct LATAM Airlines Group
04 Sep - 09 Sep LATAM Airlines Group
01 Sep - 11 Sep LATAM Airlines Group
29 Sep - 03 Oct LATAM Airlines Group
08 Sep - 14 Sep LATAM Airlines Group
29 Sep - 26 Oct LATAM Airlines Group
03 Sep - 09 Sep LATAM Airlines Group
14 Sep - 17 Sep LATAM Airlines Group
14 Sep - 21 Sep LATAM Airlines Group

Also check the deals for one-way flights from Rio De Janeiro 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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