The calculated distance (air line) between Khartsyzk and Kuybyshevo is approximately 39 miles respectively 62 kilometers.
By car or train, the actual journey to Kuybyshevo is certainly longer, as only the direct route (as the crow flies) between Khartsyzk and Kuybyshevo has been calculated here.
Air line (approximately)
62 kilometers
34 nautical miles