The calculated distance (air line) between Chellalat el Adhaouara and Blida is approximately 49 miles respectively 79 kilometers.
By car or train, the actual journey to Blida is certainly longer, as only the direct route (as the crow flies) between Chellalat el Adhaouara and Blida has been calculated here.
Air line (approximately)
79 kilometers
43 nautical miles