The calculated distance (air line) between Sant Adrià de Besòs and Zaragoza is approximately 161 miles respectively 259 kilometers.
By car or train, the actual journey to Zaragoza is certainly longer, as only the direct route (as the crow flies) between Sant Adrià de Besòs and Zaragoza has been calculated here.
Air line (approximately)
259 kilometers
140 nautical miles