Cheapest return flights from Sao Paulo to Buenos Aires in September from $260

AirHint found the following cheapest return flights from Sao Paulo (GRU) to Buenos Aires (AEP) in September 2026 (see full year).

Return flights

17 Sep - 26 Sep Aerolíneas Argentinas direct
18 Sep - 21 Sep Aerolíneas Argentinas direct
17 Sep - 20 Sep Aerolíneas Argentinas direct
10 Sep - 13 Sep Aerolíneas Argentinas direct
10 Sep - 14 Sep Aerolíneas Argentinas direct
24 Sep - 28 Sep Aerolíneas Argentinas direct
18 Sep - 28 Sep Aerolíneas Argentinas direct
14 Sep - 17 Sep Aerolíneas Argentinas direct
14 Sep - 24 Sep Aerolíneas Argentinas direct
20 Sep - 27 Sep Aerolíneas Argentinas direct
26 Sep - 07 Oct Aerolíneas Argentinas direct
21 Sep - 01 Oct Aerolíneas Argentinas direct
28 Sep - 02 Oct Aerolíneas Argentinas direct

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