The calculated distance (air line) between Malkā and Umm as Summāq is approximately 55 miles respectively 89 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 Malkā and Umm as Summāq has been calculated here.
Air line (approximately)
89 kilometers
48 nautical miles