The calculated distance (air line) between Santa María Chimalhuacán and Tláhuac is approximately 10 miles respectively 16 kilometers.
By car or train, the actual journey to Tláhuac is certainly longer, as only the direct route (as the crow flies) between Santa María Chimalhuacán and Tláhuac has been calculated here.
Air line (approximately)
16 kilometers
9 nautical miles