The calculated distance (air line) between Zaragoza and Castelló de la Plana is approximately 123 miles respectively 198 kilometers.
By car or train, the actual journey to Castelló de la Plana is certainly longer, as only the direct route (as the crow flies) between Zaragoza and Castelló de la Plana has been calculated here.
Air line (approximately)
198 kilometers
107 nautical miles