The calculated distance (air line) between Umm as Summāq and Saḩāb is approximately 9 miles respectively 14 kilometers.
By car or train, the actual journey to Saḩāb is certainly longer, as only the direct route (as the crow flies) between Umm as Summāq and Saḩāb has been calculated here.
Air line (approximately)
14 kilometers
8 nautical miles