The calculated distance (air line) between Dayr Abū Ḑa‘īf and Hebron is approximately 66 miles respectively 106 kilometers.
By car or train, the actual journey to Hebron is certainly longer, as only the direct route (as the crow flies) between Dayr Abū Ḑa‘īf and Hebron has been calculated here.
Air line (approximately)
106 kilometers
57 nautical miles