Cheapest return flights from Sao Paulo to Buenos Aires in September from $350

Best time to book flights for Sao Paulo (CGH) to Buenos Aires (AEP) flights at AirHint

AirHint found the following cheapest return flights from Sao Paulo (CGH) to Buenos Aires (AEP) in September 2025 (see full year).

Return flights

08 Sep - 14 Sep GOL Linhas Aéreas
07 Sep - 13 Sep GOL Linhas Aéreas
19 Sep - 23 Sep GOL Linhas Aéreas
19 Sep - 24 Sep GOL Linhas Aéreas
04 Sep - 28 Sep GOL Linhas Aéreas
16 Sep - 22 Sep GOL Linhas Aéreas
12 Sep - 15 Sep GOL Linhas Aéreas
05 Sep - 08 Sep GOL Linhas Aéreas
19 Sep - 22 Sep GOL Linhas Aéreas
18 Sep - 23 Sep LATAM Airlines Group
20 Sep - 03 Oct GOL Linhas Aéreas

Also check the deals for one-way flights from Sao Paulo 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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