The calculated distance (air line) between Kurayyimah and Umm as Summāq is approximately 31 miles respectively 50 kilometers.
By car or train, the actual journey to Umm as Summāq is certainly longer, as only the direct route (as the crow flies) between Kurayyimah and Umm as Summāq has been calculated here.
Air line (approximately)
50 kilometers
27 nautical miles