The calculated distance (air line) between Ocoyoacac and Álvaro Obregón is approximately 18 miles respectively 28 kilometers.
By car or train, the actual journey to Álvaro Obregón is certainly longer, as only the direct route (as the crow flies) between Ocoyoacac and Álvaro Obregón has been calculated here.
Air line (approximately)
28 kilometers
15 nautical miles