The calculated distance (air line) between ‘Ayn Jannā and As Salţ is approximately 21 miles respectively 33 kilometers.
By car or train, the actual journey to As Salţ is certainly longer, as only the direct route (as the crow flies) between ‘Ayn Jannā and As Salţ has been calculated here.
Air line (approximately)
33 kilometers
18 nautical miles