The calculated distance (air line) between Salfīt and An Nuşayrāt is approximately 64 miles respectively 103 kilometers.
By car or train, the actual journey to An Nuşayrāt is certainly longer, as only the direct route (as the crow flies) between Salfīt and An Nuşayrāt has been calculated here.
Air line (approximately)
103 kilometers
55 nautical miles