The calculated distance (air line) between San Mateo Huitzilzingo and Ecatepec de Morelos is approximately 27 miles respectively 44 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 San Mateo Huitzilzingo and Ecatepec de Morelos has been calculated here.
Air line (approximately)
44 kilometers
24 nautical miles