The calculated distance (air line) between Nova Odesa and Yuzhnoukrayinsk is approximately 45 miles respectively 73 kilometers.
By car or train, the actual journey to Yuzhnoukrayinsk is certainly longer, as only the direct route (as the crow flies) between Nova Odesa and Yuzhnoukrayinsk has been calculated here.
Air line (approximately)
73 kilometers
39 nautical miles