The calculated distance (air line) between Voronezh and Krasnolesnyy is approximately 22 miles respectively 36 kilometers.
By car or train, the actual journey to Krasnolesnyy is certainly longer, as only the direct route (as the crow flies) between Voronezh and Krasnolesnyy has been calculated here.
Air line (approximately)
36 kilometers
19 nautical miles