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

Return flights

17 Sep - 08 Oct	IndiGo
18 Sep - 25 Sep	IndiGo
05 Sep - 28 Sep	IndiGo
06 Sep - 19 Sep	IndiGo
06 Sep - 13 Sep	IndiGo
05 Sep - 16 Sep	IndiGo
05 Sep - 15 Sep	IndiGo
18 Sep - 22 Oct	IndiGo
05 Sep - 13 Sep	IndiGo
12 Sep - 28 Sep	IndiGo
05 Sep - 17 Sep	Ethiopian Airlines

Also check the deals for one-way flights from Singapore 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 Singapore to Nairobi in September from $571

Return flights