The calculated distance (air line) between Sant'Ambrogio di Valpollicella and Mestre is approximately 68 miles respectively 110 kilometers.
By car or train, the actual journey to Mestre is certainly longer, as only the direct route (as the crow flies) between Sant'Ambrogio di Valpollicella and Mestre has been calculated here.
Air line (approximately)
110 kilometers
59 nautical miles