The calculated distance (air line) between Padre Las Casas and Hato Mayor del Rey is approximately 110 miles respectively 177 kilometers.
By car or train, the actual journey to Hato Mayor del Rey is certainly longer, as only the direct route (as the crow flies) between Padre Las Casas and Hato Mayor del Rey has been calculated here.
Air line (approximately)
177 kilometers
96 nautical miles