The calculated distance (air line) between Starokorsunskaya and Rostov-na-Donu is approximately 151 miles respectively 244 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 Starokorsunskaya and Rostov-na-Donu has been calculated here.
Air line (approximately)
244 kilometers
132 nautical miles