The calculated distance (air line) between Vrontádos and Néa Smýrni is approximately 135 miles respectively 217 kilometers.
By car or train, the actual journey to Néa Smýrni is certainly longer, as only the direct route (as the crow flies) between Vrontádos and Néa Smýrni has been calculated here.
Air line (approximately)
217 kilometers
117 nautical miles