The calculated distance (air line) between Souma and Bordj el Kiffan is approximately 23 miles respectively 36 kilometers.
By car or train, the actual journey to Bordj el Kiffan is certainly longer, as only the direct route (as the crow flies) between Souma and Bordj el Kiffan has been calculated here.
Air line (approximately)
36 kilometers
20 nautical miles