The calculated distance (air line) between L'Hospitalet de Llobregat and Llefià is approximately 8 miles respectively 13 kilometers.
By car or train, the actual journey to Llefià is certainly longer, as only the direct route (as the crow flies) between L'Hospitalet de Llobregat and Llefià has been calculated here.
Air line (approximately)
13 kilometers
7 nautical miles