The calculated distance (air line) between San Luis Tecuhautitlán and Iztapalapa is approximately 31 miles respectively 49 kilometers.
By car or train, the actual journey to Iztapalapa is certainly longer, as only the direct route (as the crow flies) between San Luis Tecuhautitlán and Iztapalapa has been calculated here.
Air line (approximately)
49 kilometers
27 nautical miles