The calculated distance (air line) between Bayt ‘Awwā and Dayr al Balaḩ is approximately 36 miles respectively 58 kilometers.
By car or train, the actual journey to Dayr al Balaḩ is certainly longer, as only the direct route (as the crow flies) between Bayt ‘Awwā and Dayr al Balaḩ has been calculated here.
Air line (approximately)
58 kilometers
31 nautical miles