The calculated distance (air line) between As Samū‘ and An Nuşayrāt is approximately 40 miles respectively 64 kilometers.
By car or train, the actual journey to An Nuşayrāt is certainly longer, as only the direct route (as the crow flies) between As Samū‘ and An Nuşayrāt has been calculated here.
Air line (approximately)
64 kilometers
35 nautical miles