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

Return flights

02 Sep - 09 Sep	IndiGo
01 Sep - 08 Sep	IndiGo
02 Sep - 13 Sep	IndiGo
30 Sep - 17 Oct	IndiGo
02 Sep - 29 Sep	IndiGo
06 Sep - 21 Sep	Thai VietJet Air
30 Sep - 17 Oct	Kenya Airways	direct
06 Sep - 21 Sep	Kenya Airways	direct
02 Sep - 09 Sep	Kenya Airways	direct
07 Sep - 23 Sep	Kenya Airways	direct
02 Sep - 29 Sep	Kenya Airways	direct

Also check the deals for one-way flights from Bangkok 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 Bangkok to Nairobi in September from $530

Return flights