The calculated distance (air line) between Néa Kallikráteia and Ílion is approximately 161 miles respectively 259 kilometers.
By car or train, the actual journey to Ílion is certainly longer, as only the direct route (as the crow flies) between Néa Kallikráteia and Ílion has been calculated here.
Air line (approximately)
259 kilometers
140 nautical miles