The calculated distance (air line) between Aïn Arnat and Souk Ahras is approximately 147 miles respectively 237 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 Arnat and Souk Ahras has been calculated here.
Air line (approximately)
237 kilometers
128 nautical miles