The calculated distance (air line) between Tlayacapan and Ecatepec de Morelos is approximately 45 miles respectively 73 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 Tlayacapan and Ecatepec de Morelos has been calculated here.
Air line (approximately)
73 kilometers
39 nautical miles