Cheapest return flights from Porto Alegre to Buenos Aires in September from $279

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

Return flights

22 Sep - 26 Sep GOL Linhas Aéreas
06 Sep - 09 Sep GOL Linhas Aéreas
25 Sep - 30 Sep Aerolineas Argentinas direct
22 Sep - 27 Sep Aerolineas Argentinas direct
20 Sep - 25 Sep Aerolineas Argentinas direct
01 Sep - 06 Sep Aerolineas Argentinas direct
03 Sep - 08 Sep GOL Linhas Aéreas
01 Sep - 13 Sep Aerolineas Argentinas direct
23 Sep - 30 Sep Aerolineas Argentinas direct
22 Sep - 30 Sep Aerolineas Argentinas direct
29 Sep - 04 Oct Aerolineas Argentinas direct
26 Sep - 03 Oct GOL Linhas Aéreas
30 Sep - 05 Oct GOL Linhas Aéreas

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