The calculated distance (air line) between Tlacotepec and Ecatepec de Morelos is approximately 139 miles respectively 224 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 Tlacotepec and Ecatepec de Morelos has been calculated here.
Air line (approximately)
224 kilometers
121 nautical miles