The calculated distance (air line) between Krasnodar and Starokorsunskaya is approximately 17 miles respectively 27 kilometers.
By car or train, the actual journey to Starokorsunskaya is certainly longer, as only the direct route (as the crow flies) between Krasnodar and Starokorsunskaya has been calculated here.
Air line (approximately)
27 kilometers
14 nautical miles