AirHint found the following cheapest return flights from Lima (LIM) to Buenos Aires (AEP) in August 2025 (see full year).

Return flights

28 Aug - 02 Sep	JetSmart
29 Aug - 07 Sep	Sky Airline
23 Aug - 30 Aug	Sky Airline
29 Aug - 18 Sep	JetSmart
29 Aug - 30 Aug	JetSmart
30 Aug - 11 Sep	Aerolineas Argentinas	direct
31 Aug - 07 Sep	LATAM Airlines Group
31 Aug - 08 Sep	LATAM Airlines Group
31 Aug - 09 Sep	LATAM Airlines Group
31 Aug - 03 Sep	LATAM Airlines Group
30 Aug - 18 Sep	JetSmart
29 Aug - 10 Sep	JetSmart
29 Aug - 31 Aug	Sky Airline
22 Aug - 30 Aug	Sky Airline
28 Aug - 31 Aug	Sky Airline
26 Aug - 30 Aug	JetSmart
28 Aug - 30 Aug	JetSmart
24 Aug - 30 Aug	JetSmart
27 Aug - 31 Aug	Sky Airline
26 Aug - 31 Aug	Sky Airline

Also check the deals for one-way flights from Lima to Buenos Aires in August.

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 Lima to Buenos Aires in August from 362€

Return flights