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