The calculated distance (air line) between Santa María Chimalhuacán and San Isidro is approximately 6 miles respectively 9 kilometers.
By car or train, the actual journey to San Isidro is certainly longer, as only the direct route (as the crow flies) between Santa María Chimalhuacán and San Isidro has been calculated here.
Air line (approximately)
9 kilometers
5 nautical miles