The calculated distance (air line) between L'Hospitalet de Llobregat and Sant Cugat del Vallès is approximately 8 miles respectively 12 kilometers.
By car or train, the actual journey to Sant Cugat del Vallès is certainly longer, as only the direct route (as the crow flies) between L'Hospitalet de Llobregat and Sant Cugat del Vallès has been calculated here.
Air line (approximately)
12 kilometers
7 nautical miles