The calculated distance (air line) between Al Khafjī and Ash Shāmīyah is approximately 70 miles respectively 113 kilometers.
By car or train, the actual journey to Ash Shāmīyah is certainly longer, as only the direct route (as the crow flies) between Al Khafjī and Ash Shāmīyah has been calculated here.
Air line (approximately)
113 kilometers
61 nautical miles