Cheapest return flights from Sao Paulo to Buenos Aires in September from $229

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

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

Return flights

21 Sep - 26 Sep Flybondi direct
21 Sep - 25 Sep Flybondi direct
08 Sep - 14 Sep Flybondi direct
07 Sep - 13 Sep Flybondi direct
20 Sep - 03 Oct Flybondi direct
15 Sep - 25 Sep Aerolineas Argentinas direct
17 Sep - 23 Sep Aerolineas Argentinas direct
10 Sep - 24 Sep Aerolineas Argentinas direct
13 Sep - 20 Sep Aerolineas Argentinas direct
05 Sep - 12 Sep Aerolineas Argentinas direct
08 Sep - 19 Sep Aerolineas Argentinas direct
23 Sep - 03 Oct Aerolineas Argentinas direct
24 Sep - 01 Oct Aerolineas Argentinas direct
05 Sep - 05 Oct Aerolineas Argentinas direct

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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