The calculated distance (air line) between Staroshcherbinovskaya and Krasnodar is approximately 110 miles respectively 177 kilometers.
By car or train, the actual journey to Krasnodar is certainly longer, as only the direct route (as the crow flies) between Staroshcherbinovskaya and Krasnodar has been calculated here.
Air line (approximately)
177 kilometers
96 nautical miles