The calculated distance (air line) between Sergeyevka and Razdol’noye is approximately 75 miles respectively 120 kilometers.
By car or train, the actual journey to Razdol’noye is certainly longer, as only the direct route (as the crow flies) between Sergeyevka and Razdol’noye has been calculated here.
Air line (approximately)
120 kilometers
65 nautical miles