The calculated distance (air line) between Ḩawallī and As Sālimīyah is approximately 3 miles respectively 5 kilometers.
By car or train, the actual journey to As Sālimīyah is certainly longer, as only the direct route (as the crow flies) between Ḩawallī and As Sālimīyah has been calculated here.
Air line (approximately)
5 kilometers
2 nautical miles