The calculated distance (air line) between Isola della Scala and Quarto Oggiaro is approximately 92 miles respectively 148 kilometers.
By car or train, the actual journey to Quarto Oggiaro is certainly longer, as only the direct route (as the crow flies) between Isola della Scala and Quarto Oggiaro has been calculated here.
Air line (approximately)
148 kilometers
80 nautical miles