The calculated distance (air line) between Néon Karlovásion and Keratsíni is approximately 169 miles respectively 271 kilometers.
By car or train, the actual journey to Keratsíni is certainly longer, as only the direct route (as the crow flies) between Néon Karlovásion and Keratsíni has been calculated here.
Air line (approximately)
271 kilometers
146 nautical miles