The calculated distance (air line) between Santiaguito Tlalcilalcalli and Ecatepec de Morelos is approximately 47 miles respectively 76 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 Santiaguito Tlalcilalcalli and Ecatepec de Morelos has been calculated here.
Air line (approximately)
76 kilometers
41 nautical miles