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

Return flights

11 Sep - 24 Sep	KLM
18 Sep - 22 Sep	KLM
09 Sep - 02 Oct	KLM
25 Sep - 08 Oct	Qatar Airways
22 Sep - 13 Oct	Qatar Airways
08 Sep - 29 Sep	Qatar Airways
17 Sep - 17 Oct	Qatar Airways
16 Sep - 17 Oct	Qatar Airways
10 Sep - 18 Sep	KLM
20 Sep - 13 Oct	Qatar Airways
18 Sep - 03 Oct	Qatar Airways
13 Sep - 11 Oct	Qatar Airways
16 Sep - 30 Sep	Qatar Airways
30 Sep - 21 Oct	Pegasus Airlines
27 Sep - 01 Oct	Norwegian Air Sweden AOC
10 Sep - 26 Sep	Pegasus Airlines
04 Sep - 14 Sep	Air France
08 Sep - 15 Sep	KLM

Also check the deals for one-way flights from Helsinki 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 Helsinki to Nairobi in September from $577

Return flights