The calculated distance (air line) between Kafr Zaytā and As Salamīyah is approximately 36 miles respectively 57 kilometers.
By car or train, the actual journey to As Salamīyah is certainly longer, as only the direct route (as the crow flies) between Kafr Zaytā and As Salamīyah has been calculated here.
Air line (approximately)
57 kilometers
31 nautical miles