The calculated distance (air line) between Ivano-Frankove and Chernivtsi is approximately 150 miles respectively 242 kilometers.
By car or train, the actual journey to Chernivtsi is certainly longer, as only the direct route (as the crow flies) between Ivano-Frankove and Chernivtsi has been calculated here.
Air line (approximately)
242 kilometers
131 nautical miles