AirHint found the following cheapest return flights from London (LCY) to Nairobi (NBO) in September 2026 (see full year).

Return flights

24 Sep - 06 Oct	KLM
19 Sep - 03 Oct	SWISS
24 Sep - 26 Oct	KLM
24 Sep - 03 Oct	KLM
17 Sep - 03 Oct	KLM
23 Sep - 03 Oct	KLM
18 Sep - 03 Oct	KLM
15 Sep - 22 Sep	SWISS
22 Sep - 02 Oct	KLM
23 Sep - 02 Oct	KLM
24 Sep - 02 Oct	KLM
08 Sep - 15 Sep	KLM
06 Sep - 13 Sep	SWISS
18 Sep - 26 Sep	KLM
18 Sep - 24 Sep	KLM
04 Sep - 18 Sep	KLM
14 Sep - 28 Sep	KLM
08 Sep - 17 Sep	Lufthansa
10 Sep - 17 Sep	Lufthansa
03 Sep - 24 Sep	KLM

Also check the deals for one-way flights from London to Nairobi 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 Nairobi in September from $821

Return flights