The calculated distance (air line) between Madīnat an Naşr and Al Fashn is approximately 89 miles respectively 144 kilometers.
By car or train, the actual journey to Al Fashn is certainly longer, as only the direct route (as the crow flies) between Madīnat an Naşr and Al Fashn has been calculated here.
Air line (approximately)
144 kilometers
78 nautical miles