The calculated distance (air line) between Ampliación San Mateo and Iztapalapa is approximately 19 miles respectively 30 kilometers.
By car or train, the actual journey to Iztapalapa is certainly longer, as only the direct route (as the crow flies) between Ampliación San Mateo and Iztapalapa has been calculated here.
Air line (approximately)
30 kilometers
16 nautical miles