The calculated distance (air line) between L'Eliana and Puente de Vallecas is approximately 175 miles respectively 282 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 L'Eliana and Puente de Vallecas has been calculated here.
Air line (approximately)
282 kilometers
152 nautical miles