The calculated distance (air line) between Palaió Fáliro and Argyroúpoli is approximately 3 miles respectively 5 kilometers.
By car or train, the actual journey to Argyroúpoli is certainly longer, as only the direct route (as the crow flies) between Palaió Fáliro and Argyroúpoli has been calculated here.
Air line (approximately)
5 kilometers
3 nautical miles