The calculated distance (air line) between San Martín Cuautlalpan and Álvaro Obregón is approximately 25 miles respectively 40 kilometers.
By car or train, the actual journey to Álvaro Obregón is certainly longer, as only the direct route (as the crow flies) between San Martín Cuautlalpan and Álvaro Obregón has been calculated here.
Air line (approximately)
40 kilometers
22 nautical miles