The calculated distance (air line) between Portachuelo and San Ignacio de Velasco is approximately 174 miles respectively 281 kilometers.
By car or train, the actual journey to San Ignacio de Velasco is certainly longer, as only the direct route (as the crow flies) between Portachuelo and San Ignacio de Velasco has been calculated here.
Air line (approximately)
281 kilometers
151 nautical miles