The calculated distance (air line) between Torrejón de Ardoz and San Sebastián de los Reyes is approximately 11 miles respectively 17 kilometers.
By car or train, the actual journey to San Sebastián de los Reyes is certainly longer, as only the direct route (as the crow flies) between Torrejón de Ardoz and San Sebastián de los Reyes has been calculated here.
Air line (approximately)
17 kilometers
9 nautical miles