The calculated distance (air line) between Maó and L'Hospitalet de Llobregat is approximately 152 miles respectively 245 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 Maó and L'Hospitalet de Llobregat has been calculated here.
Air line (approximately)
245 kilometers
132 nautical miles