The calculated distance (air line) between Santiago de los Caballeros and Hato Mayor del Rey is approximately 105 miles respectively 170 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 Santiago de los Caballeros and Hato Mayor del Rey has been calculated here.
Air line (approximately)
170 kilometers
92 nautical miles