The calculated distance (air line) between Vila Nova de Gaia and Águas Santas is approximately 6 miles respectively 10 kilometers.
By car or train, the actual journey to Águas Santas is certainly longer, as only the direct route (as the crow flies) between Vila Nova de Gaia and Águas Santas has been calculated here.
Air line (approximately)
10 kilometers
5 nautical miles