Cheapest return flights from Porto Alegre to Buenos Aires in September from $303

Best time to book flights for Porto Alegre (POA) to Buenos Aires (AEP) flights at AirHint

AirHint found the following cheapest return flights from Porto Alegre (POA) to Buenos Aires (AEP) in September 2025 (see full year).

Return flights

01 Sep - 06 Sep GOL Linhas Aéreas
05 Sep - 08 Sep GOL Linhas Aéreas
16 Sep - 23 Sep Aerolineas Argentinas direct
19 Sep - 25 Sep Aerolineas Argentinas direct
18 Sep - 25 Sep Aerolineas Argentinas direct
18 Sep - 22 Sep Aerolineas Argentinas direct
11 Sep - 14 Sep Aerolineas Argentinas
07 Sep - 14 Sep GOL Linhas Aéreas

Also check the deals for one-way flights from Porto Alegre 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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