The calculated distance (air line) between Sangüesa/Zangoza and Bilbao is approximately 96 miles respectively 154 kilometers.
By car or train, the actual journey to Bilbao is certainly longer, as only the direct route (as the crow flies) between Sangüesa/Zangoza and Bilbao has been calculated here.
Air line (approximately)
154 kilometers
83 nautical miles