The calculated distance (air line) between Ḩayy al Bunayyāt and Sūf is approximately 29 miles respectively 47 kilometers.
By car or train, the actual journey to Sūf is certainly longer, as only the direct route (as the crow flies) between Ḩayy al Bunayyāt and Sūf has been calculated here.
Air line (approximately)
47 kilometers
25 nautical miles