The calculated distance (air line) between Benicàssim and L'Hospitalet de Llobregat is approximately 140 miles respectively 225 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 Benicàssim and L'Hospitalet de Llobregat has been calculated here.
Air line (approximately)
225 kilometers
121 nautical miles