The calculated distance (air line) between Verdun and L'Hospitalet de Llobregat is approximately 7 miles respectively 11 kilometers.
By car or train, the actual journey to L'Hospitalet de Llobregat is certainly longer, as only the direct route (as the crow flies) between Verdun and L'Hospitalet de Llobregat has been calculated here.
Air line (approximately)
11 kilometers
6 nautical miles