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