The calculated distance (air line) between Zaragoza and Alcalá de Henares is approximately 153 miles respectively 246 kilometers.
By car or train, the actual journey to Alcalá de Henares is certainly longer, as only the direct route (as the crow flies) between Zaragoza and Alcalá de Henares has been calculated here.
Air line (approximately)
246 kilometers
133 nautical miles