The calculated distance (air line) between El Saúz and Ecatepec de Morelos is approximately 91 miles respectively 147 kilometers.
By car or train, the actual journey to Ecatepec de Morelos is certainly longer, as only the direct route (as the crow flies) between El Saúz and Ecatepec de Morelos has been calculated here.
Air line (approximately)
147 kilometers
79 nautical miles