The calculated distance (air line) between Dayr Abū Ḑa‘īf and Dayr al Balaḩ is approximately 93 miles respectively 150 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 Dayr Abū Ḑa‘īf and Dayr al Balaḩ has been calculated here.
Air line (approximately)
150 kilometers
81 nautical miles