The calculated distance (air line) between Néa Filadélfeia and Kalamariá is approximately 181 miles respectively 291 kilometers.
By car or train, the actual journey to Kalamariá is certainly longer, as only the direct route (as the crow flies) between Néa Filadélfeia and Kalamariá has been calculated here.
Air line (approximately)
291 kilometers
157 nautical miles