The calculated distance (air line) between Dayr al ‘Aşāfīr and As Salamīyah is approximately 113 miles respectively 181 kilometers.
By car or train, the actual journey to As Salamīyah is certainly longer, as only the direct route (as the crow flies) between Dayr al ‘Aşāfīr and As Salamīyah has been calculated here.
Air line (approximately)
181 kilometers
98 nautical miles