The calculated distance (air line) between San Agustín del Guadalix and Puente de Vallecas is approximately 20 miles respectively 32 kilometers.
By car or train, the actual journey to Puente de Vallecas is certainly longer, as only the direct route (as the crow flies) between San Agustín del Guadalix and Puente de Vallecas has been calculated here.
Air line (approximately)
32 kilometers
17 nautical miles