The calculated distance (air line) between Rayón and Ecatepec de Morelos is approximately 159 miles respectively 256 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 Rayón and Ecatepec de Morelos has been calculated here.
Air line (approximately)
256 kilometers
138 nautical miles