The calculated distance (air line) between Kisra - Sume'a and Bet Shemesh is approximately 88 miles respectively 141 kilometers.
By car or train, the actual journey to Bet Shemesh is certainly longer, as only the direct route (as the crow flies) between Kisra - Sume'a and Bet Shemesh has been calculated here.
Air line (approximately)
141 kilometers
76 nautical miles