The calculated distance (air line) between Kakamega and Ongata Rongai is approximately 181 miles respectively 291 kilometers.
By car or train, the actual journey to Ongata Rongai is certainly longer, as only the direct route (as the crow flies) between Kakamega and Ongata Rongai has been calculated here.
Air line (approximately)
291 kilometers
157 nautical miles