The calculated distance (air line) between Aş Şuwayrah and As Samawah is approximately 114 miles respectively 184 kilometers.
By car or train, the actual journey to As Samawah is certainly longer, as only the direct route (as the crow flies) between Aş Şuwayrah and As Samawah has been calculated here.
Air line (approximately)
184 kilometers
99 nautical miles