The calculated distance (air line) between San Antonio Tecómitl and Tlalnepantla is approximately 26 miles respectively 42 kilometers.
By car or train, the actual journey to Tlalnepantla is certainly longer, as only the direct route (as the crow flies) between San Antonio Tecómitl and Tlalnepantla has been calculated here.
Air line (approximately)
42 kilometers
23 nautical miles