The calculated distance (air line) between Puente de Ixtla and Iztapalapa is approximately 54 miles respectively 87 kilometers.
By car or train, the actual journey to Iztapalapa is certainly longer, as only the direct route (as the crow flies) between Puente de Ixtla and Iztapalapa has been calculated here.
Air line (approximately)
87 kilometers
47 nautical miles