The calculated distance (air line) between Blida and Bordj el Kiffan is approximately 28 miles respectively 45 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 Blida and Bordj el Kiffan has been calculated here.
Air line (approximately)
45 kilometers
24 nautical miles