The calculated distance (air line) between Kafr ad Dawwār and Aş Şaff is approximately 128 miles respectively 207 kilometers.
By car or train, the actual journey to Aş Şaff is certainly longer, as only the direct route (as the crow flies) between Kafr ad Dawwār and Aş Şaff has been calculated here.
Air line (approximately)
207 kilometers
111 nautical miles