The calculated distance (air line) between Zaragoza and Sants-Montjuïc is approximately 158 miles respectively 254 kilometers.
By car or train, the actual journey to Sants-Montjuïc is certainly longer, as only the direct route (as the crow flies) between Zaragoza and Sants-Montjuïc has been calculated here.
Air line (approximately)
254 kilometers
137 nautical miles