The calculated distance (air line) between Kafr Kannā and Bet Shemesh is approximately 73 miles respectively 118 kilometers.
By car or train, the actual journey to Bet Shemesh is certainly longer, as only the direct route (as the crow flies) between Kafr Kannā and Bet Shemesh has been calculated here.
Air line (approximately)
118 kilometers
63 nautical miles