The calculated distance (air line) between Puebla and Ecatepec de Morelos is approximately 68 miles respectively 110 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 Puebla and Ecatepec de Morelos has been calculated here.
Air line (approximately)
110 kilometers
59 nautical miles