The calculated distance (air line) between Cornellà de Llobregat and Castellbisbal is approximately 10 miles respectively 16 kilometers.
By car or train, the actual journey to Castellbisbal is certainly longer, as only the direct route (as the crow flies) between Cornellà de Llobregat and Castellbisbal has been calculated here.
Air line (approximately)
16 kilometers
9 nautical miles