The calculated distance (air line) between Néa Artáki and Néa Smýrni is approximately 40 miles respectively 64 kilometers.
By car or train, the actual journey to Néa Smýrni is certainly longer, as only the direct route (as the crow flies) between Néa Artáki and Néa Smýrni has been calculated here.
Air line (approximately)
64 kilometers
35 nautical miles