The calculated distance (air line) between San Diego de la Unión and Naucalpan de Juárez is approximately 173 miles respectively 279 kilometers.
By car or train, the actual journey to Naucalpan de Juárez is certainly longer, as only the direct route (as the crow flies) between San Diego de la Unión and Naucalpan de Juárez has been calculated here.
Air line (approximately)
279 kilometers
151 nautical miles