The calculated distance (air line) between Ilovays’k and Kostiantynivka is approximately 47 miles respectively 76 kilometers.
By car or train, the actual journey to Kostiantynivka is certainly longer, as only the direct route (as the crow flies) between Ilovays’k and Kostiantynivka has been calculated here.
Air line (approximately)
76 kilometers
41 nautical miles