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

Return flights

16 Sep - 24 Sep	Avianca
03 Sep - 29 Sep	Avianca
11 Sep - 24 Sep	Avianca
28 Sep - 06 Oct	Avianca
13 Sep - 07 Oct	Avianca
13 Sep - 08 Oct	Avianca
24 Sep - 08 Oct	Avianca
22 Sep - 14 Oct	Avianca
10 Sep - 08 Oct	Avianca
30 Sep - 14 Oct	Avianca
13 Sep - 09 Oct	Avianca
16 Sep - 14 Oct	Avianca
29 Sep - 22 Oct	Avianca
02 Sep - 24 Sep	Avianca
14 Sep - 29 Sep	Avianca
15 Sep - 29 Sep	Avianca
23 Sep - 29 Sep	Avianca
12 Sep - 29 Sep	Avianca
19 Sep - 29 Sep	Avianca
19 Sep - 24 Sep	Avianca

Also check the deals for one-way flights from London 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 London to Lima in September from 640€

Return flights