The calculated distance (air line) between Néa Moudhaniá and Agios Dimitrios is approximately 161 miles respectively 260 kilometers.
By car or train, the actual journey to Agios Dimitrios is certainly longer, as only the direct route (as the crow flies) between Néa Moudhaniá and Agios Dimitrios has been calculated here.
Air line (approximately)
260 kilometers
140 nautical miles