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