The calculated distance (air line) between Valladolid and Medina de Ríoseco is approximately 23 miles respectively 37 kilometers.
By car or train, the actual journey to Medina de Ríoseco is certainly longer, as only the direct route (as the crow flies) between Valladolid and Medina de Ríoseco has been calculated here.
Air line (approximately)
37 kilometers
20 nautical miles