The calculated distance (air line) between Novoyavorivs'k and Chernivtsi is approximately 156 miles respectively 250 kilometers.
By car or train, the actual journey to Chernivtsi is certainly longer, as only the direct route (as the crow flies) between Novoyavorivs'k and Chernivtsi has been calculated here.
Air line (approximately)
250 kilometers
135 nautical miles