The calculated distance (air line) between Râs el Oued and Souk Ahras is approximately 165 miles respectively 265 kilometers.
By car or train, the actual journey to Souk Ahras is certainly longer, as only the direct route (as the crow flies) between Râs el Oued and Souk Ahras has been calculated here.
Air line (approximately)
265 kilometers
143 nautical miles