The calculated distance (air line) between Valladolid and Miraflores de la Sierra is approximately 77 miles respectively 123 kilometers.
By car or train, the actual journey to Miraflores de la Sierra is certainly longer, as only the direct route (as the crow flies) between Valladolid and Miraflores de la Sierra has been calculated here.
Air line (approximately)
123 kilometers
66 nautical miles