The calculated distance (air line) between Balaguer and L'Hospitalet de Llobregat is approximately 73 miles respectively 117 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 Balaguer and L'Hospitalet de Llobregat has been calculated here.
Air line (approximately)
117 kilometers
63 nautical miles