The calculated distance (air line) between Santiago de los Caballeros and Bajos de Haina is approximately 84 miles respectively 135 kilometers.
By car or train, the actual journey to Bajos de Haina is certainly longer, as only the direct route (as the crow flies) between Santiago de los Caballeros and Bajos de Haina has been calculated here.
Air line (approximately)
135 kilometers
73 nautical miles