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

Return flights

04 Sep - 11 Sep	Sky Airline
01 Sep - 08 Sep	Sky Airline
01 Sep - 12 Sep	LATAM Airlines Group
22 Sep - 30 Sep	LATAM Airlines Group
06 Sep - 13 Sep	Azul Airlines
20 Sep - 28 Sep	Azul Airlines
20 Sep - 27 Sep	Azul Airlines
04 Sep - 12 Sep	Sky Airline
26 Sep - 28 Sep	LATAM Airlines Group
06 Sep - 12 Sep	LATAM Airlines Group

Also check the deals for one-way flights from Porto Alegre to Lima in September.

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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Cheapest return flights from Porto Alegre to Lima in September from $290

Return flights