The calculated distance (air line) between Bordj Bou Arreridj and Aïn Defla is approximately 156 miles respectively 252 kilometers.
By car or train, the actual journey to Aïn Defla is certainly longer, as only the direct route (as the crow flies) between Bordj Bou Arreridj and Aïn Defla has been calculated here.
Air line (approximately)
252 kilometers
136 nautical miles