AirHint found the following cheapest return flights from London (LHR) to Lima (LIM) in September 2026 (see full year).

Return flights

15 Sep - 25 Sep	Avianca
18 Sep - 30 Sep	Avianca
17 Sep - 28 Sep	Avianca
03 Sep - 16 Sep	Avianca
04 Sep - 18 Sep	Avianca
05 Sep - 20 Sep	Avianca
07 Sep - 28 Sep	Avianca
01 Sep - 14 Sep	Avianca
02 Sep - 23 Sep	Avianca
04 Sep - 17 Sep	Avianca
01 Sep - 01 Oct	Avianca
23 Sep - 02 Oct	Avianca
28 Sep - 19 Oct	Avianca
17 Sep - 01 Oct	Avianca
29 Sep - 11 Oct	Avianca
18 Sep - 04 Oct	Avianca
25 Sep - 10 Oct	British Airways
25 Sep - 12 Oct	Avianca
25 Sep - 11 Oct	Avianca
25 Sep - 09 Oct	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