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

Return flights

24 Sep - 08 Oct	SWISS
29 Sep - 22 Oct	KLM
21 Sep - 22 Oct	KLM
28 Sep - 26 Oct	KLM
29 Sep - 27 Oct	KLM
28 Sep - 27 Oct	KLM
24 Sep - 06 Oct	KLM
24 Sep - 05 Oct	KLM
25 Sep - 09 Oct	KLM
23 Sep - 06 Oct	KLM
22 Sep - 29 Sep	KLM
21 Sep - 30 Sep	KLM
21 Sep - 28 Sep	KLM
23 Sep - 27 Sep	KLM
19 Sep - 22 Sep	KLM
26 Sep - 29 Sep	SWISS
20 Sep - 27 Sep	SWISS
18 Sep - 30 Sep	ITA Airways
18 Sep - 29 Sep	SWISS
19 Sep - 29 Sep	SWISS

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 $966

Return flights