The calculated distance (air line) between Râs el-Barr and Al Khuşūş is approximately 99 miles respectively 159 kilometers.
By car or train, the actual journey to Al Khuşūş is certainly longer, as only the direct route (as the crow flies) between Râs el-Barr and Al Khuşūş has been calculated here.
Air line (approximately)
159 kilometers
86 nautical miles