The calculated distance (air line) between Chernomorskoye and Chornobaivka is approximately 83 miles respectively 133 kilometers.
By car or train, the actual journey to Chornobaivka is certainly longer, as only the direct route (as the crow flies) between Chernomorskoye and Chornobaivka has been calculated here.
Air line (approximately)
133 kilometers
72 nautical miles