The calculated distance (air line) between L'Hospitalet de Llobregat and Lleida is approximately 79 miles respectively 126 kilometers.
By car or train, the actual journey to Lleida is certainly longer, as only the direct route (as the crow flies) between L'Hospitalet de Llobregat and Lleida has been calculated here.
Air line (approximately)
126 kilometers
68 nautical miles