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

Return flights

17 Sep - 24 Sep	Avianca
16 Sep - 23 Sep	Avianca
23 Sep - 30 Sep	Avianca
24 Sep - 01 Oct	Avianca
19 Sep - 29 Sep	Avianca
14 Sep - 21 Sep	Avianca
15 Sep - 22 Sep	Avianca
27 Sep - 04 Oct	Avianca
02 Sep - 08 Sep	Avianca
21 Sep - 30 Sep	Avianca
09 Sep - 18 Sep	Copa
09 Sep - 16 Sep	Copa
25 Sep - 02 Oct	Copa
28 Sep - 05 Oct	Avianca
26 Sep - 05 Oct	Avianca
29 Sep - 06 Oct	Avianca
25 Sep - 02 Oct	Volaris	direct
30 Sep - 07 Oct	Volaris	direct
26 Sep - 03 Oct	Avianca

Also check the deals for one-way flights from Lima to Mexico City 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 Lima to Mexico City in September from 311€

Return flights