The calculated distance (air line) between Jaca and L'Hospitalet de Llobregat is approximately 160 miles respectively 257 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 Jaca and L'Hospitalet de Llobregat has been calculated here.
Air line (approximately)
257 kilometers
139 nautical miles