The calculated distance (air line) between Meco and Alcalá de Henares is approximately 5 miles respectively 8 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 Meco and Alcalá de Henares has been calculated here.
Air line (approximately)
8 kilometers
4 nautical miles