The calculated distance (air line) between Velilla de San Antonio and Alcalá de Henares is approximately 10 miles respectively 17 kilometers.
By car or train, the actual journey to Alcalá de Henares is certainly longer, as only the direct route (as the crow flies) between Velilla de San Antonio and Alcalá de Henares has been calculated here.
Air line (approximately)
17 kilometers
9 nautical miles