The calculated distance (air line) between Smyshlyayevka and Novaya Mayna is approximately 68 miles respectively 110 kilometers.
By car or train, the actual journey to Novaya Mayna is certainly longer, as only the direct route (as the crow flies) between Smyshlyayevka and Novaya Mayna has been calculated here.
Air line (approximately)
110 kilometers
59 nautical miles