The calculated distance (air line) between Aïn Smara and Souk Ahras is approximately 81 miles respectively 130 kilometers.
By car or train, the actual journey to Souk Ahras is certainly longer, as only the direct route (as the crow flies) between Aïn Smara and Souk Ahras has been calculated here.
Air line (approximately)
130 kilometers
70 nautical miles