The calculated distance (air line) between Atlautla and Ecatepec de Morelos is approximately 44 miles respectively 71 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 Atlautla and Ecatepec de Morelos has been calculated here.
Air line (approximately)
71 kilometers
38 nautical miles