Cheapest return flights from Porto Alegre to Buenos Aires in September from $201

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

Return flights

25 Sep - 27 Sep Aerolineas Argentinas direct
30 Sep - 02 Oct Aerolineas Argentinas direct
30 Sep - 04 Oct Aerolineas Argentinas direct
23 Sep - 25 Sep LATAM Airlines Group direct
16 Sep - 27 Sep LATAM Airlines Group direct
23 Sep - 27 Sep LATAM Airlines Group direct
30 Sep - 06 Oct Aerolineas Argentinas
27 Sep - 30 Sep Aerolineas Argentinas direct
18 Sep - 25 Sep LATAM Airlines Group direct
29 Sep - 02 Oct Aerolineas Argentinas direct
20 Sep - 27 Sep LATAM Airlines Group direct
27 Sep - 29 Sep Aerolineas Argentinas direct
25 Sep - 29 Sep GOL Linhas Aéreas direct
24 Sep - 30 Sep LATAM Airlines Group
26 Sep - 03 Oct 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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