The calculated distance (air line) between Áno Liósia and Ilioúpoli is approximately 11 miles respectively 18 kilometers.
By car or train, the actual journey to Ilioúpoli is certainly longer, as only the direct route (as the crow flies) between Áno Liósia and Ilioúpoli has been calculated here.
Air line (approximately)
18 kilometers
10 nautical miles