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

Return flights

11 Sep - 21 Sep	TAAG Angola Airlines
22 Sep - 26 Sep	RwandAir
14 Sep - 21 Sep	RwandAir
08 Sep - 15 Sep	RwandAir
25 Sep - 28 Sep	Ethiopian Airlines
17 Sep - 23 Sep	Ethiopian Airlines
26 Sep - 30 Sep	RwandAir
17 Sep - 24 Sep	Ethiopian Airlines
23 Sep - 07 Oct	Uganda Airlines
22 Sep - 30 Sep	Ethiopian Airlines
23 Sep - 28 Sep	Uganda Airlines
09 Sep - 09 Oct	Ethiopian Airlines
27 Sep - 01 Oct	Ethiopian Airlines
22 Sep - 03 Oct	Air Tanzania
23 Sep - 07 Oct	Kenya Airways	direct
27 Sep - 01 Oct	Kenya Airways	direct
09 Sep - 09 Oct	Kenya Airways	direct

Also check the deals for one-way flights from Johannesburg 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 Johannesburg to Nairobi in September from 258€

Return flights