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

Return flights

30 Sep - 13 Oct	JetSmart
30 Sep - 15 Oct	JetSmart
28 Sep - 13 Oct	JetSmart
28 Sep - 15 Oct	JetSmart
29 Sep - 13 Oct	JetSmart	direct
29 Sep - 15 Oct	JetSmart	direct
30 Sep - 13 Oct	JetSmart	direct
30 Sep - 15 Oct	JetSmart	direct
24 Sep - 13 Oct	JetSmart	direct
23 Sep - 13 Oct	JetSmart	direct
28 Sep - 30 Sep	JetSmart
23 Sep - 29 Sep	JetSmart
29 Sep - 30 Sep	JetSmart
24 Sep - 30 Sep	JetSmart
23 Sep - 30 Sep	JetSmart
22 Sep - 30 Sep	JetSmart
26 Sep - 30 Sep	JetSmart
01 Sep - 06 Sep	JetSmart
08 Sep - 19 Sep	JetSmart
08 Sep - 28 Sep	JetSmart

Also check the deals for one-way flights from Buenos Aires 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 Buenos Aires to Lima in September from $370

Return flights