The calculated distance (air line) between Sant Andreu and Cornellà de Llobregat is approximately 8 miles respectively 13 kilometers.
By car or train, the actual journey to Cornellà de Llobregat is certainly longer, as only the direct route (as the crow flies) between Sant Andreu and Cornellà de Llobregat has been calculated here.
Air line (approximately)
13 kilometers
7 nautical miles