The calculated distance (air line) between Peraía and Néa Smýrni is approximately 181 miles respectively 292 kilometers.
By car or train, the actual journey to Néa Smýrni is certainly longer, as only the direct route (as the crow flies) between Peraía and Néa Smýrni has been calculated here.
Air line (approximately)
292 kilometers
158 nautical miles