The calculated distance (air line) between Mislata and L'Hospitalet de Llobregat is approximately 186 miles respectively 299 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 Mislata and L'Hospitalet de Llobregat has been calculated here.
Air line (approximately)
299 kilometers
161 nautical miles