The calculated distance (air line) between L'Hospitalet de Llobregat and Paterna is approximately 185 miles respectively 298 kilometers.
By car or train, the actual journey to Paterna is certainly longer, as only the direct route (as the crow flies) between L'Hospitalet de Llobregat and Paterna has been calculated here.
Air line (approximately)
298 kilometers
161 nautical miles