The calculated distance (air line) between Lutsk and Kamianets-Podilskyi is approximately 154 miles respectively 248 kilometers.
By car or train, the actual journey to Kamianets-Podilskyi is certainly longer, as only the direct route (as the crow flies) between Lutsk and Kamianets-Podilskyi has been calculated here.
Air line (approximately)
248 kilometers
134 nautical miles