The calculated distance (air line) between San Sebastián Chimalpa and Ecatepec de Morelos is approximately 17 miles respectively 27 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 Sebastián Chimalpa and Ecatepec de Morelos has been calculated here.
Air line (approximately)
27 kilometers
15 nautical miles