AirHint found the following cheapest return flights from London (LON) to Nairobi (NBO) in September 2025 (see full year).

Return flights

21 Sep - 12 Oct	Pegasus Airlines
27 Sep - 12 Oct	Pegasus Airlines
29 Sep - 05 Oct	Wizz Air
28 Sep - 12 Oct	Pegasus Airlines
23 Sep - 07 Oct	Wizz Air Malta
30 Sep - 13 Oct	Wizz Air UK
18 Sep - 12 Oct	SunExpress
28 Sep - 15 Oct	Pegasus Airlines
24 Sep - 09 Oct	Ryanair
28 Sep - 20 Oct	Pegasus Airlines
25 Sep - 30 Sep	Ethiopian Airlines
23 Sep - 27 Sep	Wizz Air Malta
22 Sep - 29 Sep	AJet
23 Sep - 30 Sep	Ryanair
25 Sep - 29 Sep	EgyptAir
20 Sep - 23 Sep	KLM
18 Sep - 22 Sep	KLM
19 Sep - 22 Sep	KLM
24 Sep - 30 Sep	KLM
19 Sep - 25 Sep	Air France

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.

Book a cheap hotel in Nairobi

Cheap car rent in Nairobi

Cheapest return flights from London to Nairobi in September from $567

Return flights