The calculated distance (air line) between Umm as Summāq and Ash Shajarah is approximately 53 miles respectively 85 kilometers.
By car or train, the actual journey to Ash Shajarah is certainly longer, as only the direct route (as the crow flies) between Umm as Summāq and Ash Shajarah has been calculated here.
Air line (approximately)
85 kilometers
46 nautical miles