The calculated distance (air line) between Tlachichuca and Ecatepec de Morelos is approximately 112 miles respectively 181 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 Tlachichuca and Ecatepec de Morelos has been calculated here.
Air line (approximately)
181 kilometers
97 nautical miles