The calculated distance (air line) between Warnes and San Ignacio de Velasco is approximately 166 miles respectively 266 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 Warnes and San Ignacio de Velasco has been calculated here.
Air line (approximately)
266 kilometers
144 nautical miles