The calculated distance (air line) between Meliana and L'Hospitalet de Llobregat is approximately 180 miles respectively 289 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 Meliana and L'Hospitalet de Llobregat has been calculated here.
Air line (approximately)
289 kilometers
156 nautical miles