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

Return flights

16 Sep - 22 Sep	Avianca
16 Sep - 29 Sep	Avianca
22 Sep - 25 Sep	Avianca
23 Sep - 14 Oct	KLM
16 Sep - 23 Sep	Avianca
23 Sep - 30 Sep	Avianca
16 Sep - 30 Sep	Avianca
09 Sep - 30 Sep	Avianca
17 Sep - 30 Sep	Avianca
14 Sep - 28 Sep	Avianca
14 Sep - 29 Sep	Avianca
21 Sep - 07 Oct	Avianca
22 Sep - 05 Oct	Avianca
21 Sep - 05 Oct	Avianca
21 Sep - 04 Oct	Avianca
26 Sep - 12 Oct	British Airways
30 Sep - 13 Oct	British Airways
25 Sep - 13 Oct	British Airways
18 Sep - 16 Oct	British Airways
27 Sep - 12 Oct	British Airways

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 637€

Return flights