The calculated distance (air line) between San Mateo Xoloc and Iztapalapa is approximately 27 miles respectively 44 kilometers.
By car or train, the actual journey to Iztapalapa is certainly longer, as only the direct route (as the crow flies) between San Mateo Xoloc and Iztapalapa has been calculated here.
Air line (approximately)
44 kilometers
24 nautical miles