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

Return flights

02 Sep - 10 Sep	Copa
04 Sep - 16 Sep	Copa
04 Sep - 08 Sep	Arajet
21 Sep - 27 Sep	Arajet
15 Sep - 23 Sep	Copa
02 Sep - 08 Sep	Copa
16 Sep - 26 Sep	Arajet
01 Sep - 13 Sep	Copa
04 Sep - 18 Sep	Copa
21 Sep - 29 Sep	Arajet
27 Sep - 11 Oct	Avianca
27 Sep - 11 Oct	Sky Airline	direct

Also check the deals for one-way flights from Cancun 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 Cancun to Lima in September from $294

Return flights