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