The calculated distance (air line) between As Salamīyah and ‘Ayn al ‘Arab is approximately 149 miles respectively 240 kilometers.
By car or train, the actual journey to ‘Ayn al ‘Arab is certainly longer, as only the direct route (as the crow flies) between As Salamīyah and ‘Ayn al ‘Arab has been calculated here.
Air line (approximately)
240 kilometers
129 nautical miles