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