The calculated distance (air line) between As Sūkī and Ar Ruseris is approximately 106 miles respectively 170 kilometers.
By car or train, the actual journey to Ar Ruseris is certainly longer, as only the direct route (as the crow flies) between As Sūkī and Ar Ruseris has been calculated here.
Air line (approximately)
170 kilometers
92 nautical miles