The calculated distance (air line) between San Martín Cuautlalpan and Iztapalapa is approximately 16 miles respectively 26 kilometers.
By car or train, the actual journey to Iztapalapa is certainly longer, as only the direct route (as the crow flies) between San Martín Cuautlalpan and Iztapalapa has been calculated here.
Air line (approximately)
26 kilometers
14 nautical miles