The calculated distance (air line) between Al Khinzīrah and Umm as Summāq is approximately 60 miles respectively 96 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 Al Khinzīrah and Umm as Summāq has been calculated here.
Air line (approximately)
96 kilometers
52 nautical miles