The calculated distance (air line) between Blida and Aïn Oulmene is approximately 143 miles respectively 230 kilometers.
By car or train, the actual journey to Aïn Oulmene is certainly longer, as only the direct route (as the crow flies) between Blida and Aïn Oulmene has been calculated here.
Air line (approximately)
230 kilometers
124 nautical miles