The calculated distance (air line) between Blanes and L'Hospitalet de Llobregat is approximately 42 miles respectively 67 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 Blanes and L'Hospitalet de Llobregat has been calculated here.
Air line (approximately)
67 kilometers
36 nautical miles