The calculated distance (air line) between Tlacotepec and Ecatepec de Morelos is approximately 112 miles respectively 180 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)
180 kilometers
97 nautical miles