The calculated distance (air line) between Sidi Bel Abbes and Chlef is approximately 129 miles respectively 208 kilometers.
By car or train, the actual journey to Chlef is certainly longer, as only the direct route (as the crow flies) between Sidi Bel Abbes and Chlef has been calculated here.
Air line (approximately)
208 kilometers
112 nautical miles