The calculated distance (air line) between Deir el Asad and Bet Shemesh is approximately 85 miles respectively 137 kilometers.
By car or train, the actual journey to Bet Shemesh is certainly longer, as only the direct route (as the crow flies) between Deir el Asad and Bet Shemesh has been calculated here.
Air line (approximately)
137 kilometers
74 nautical miles