The calculated distance (air line) between Sant Cristòfol de les Fonts and Zaragoza is approximately 177 miles respectively 285 kilometers.
By car or train, the actual journey to Zaragoza is certainly longer, as only the direct route (as the crow flies) between Sant Cristòfol de les Fonts and Zaragoza has been calculated here.
Air line (approximately)
285 kilometers
154 nautical miles