The calculated distance (air line) between Tibnah and Umm as Summāq is approximately 41 miles respectively 67 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 Tibnah and Umm as Summāq has been calculated here.
Air line (approximately)
67 kilometers
36 nautical miles