The calculated distance (air line) between Kiryat Ono and Bet Shemesh is approximately 24 miles respectively 39 kilometers.
By car or train, the actual journey to Bet Shemesh is certainly longer, as only the direct route (as the crow flies) between Kiryat Ono and Bet Shemesh has been calculated here.
Air line (approximately)
39 kilometers
21 nautical miles