The calculated distance (air line) between Colmenarejo and Puente de Vallecas is approximately 22 miles respectively 35 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 Colmenarejo and Puente de Vallecas has been calculated here.
Air line (approximately)
35 kilometers
19 nautical miles