The calculated distance (air line) between San Sebastián Chimalpa and Tlalnepantla is approximately 19 miles respectively 31 kilometers.
By car or train, the actual journey to Tlalnepantla is certainly longer, as only the direct route (as the crow flies) between San Sebastián Chimalpa and Tlalnepantla has been calculated here.
Air line (approximately)
31 kilometers
17 nautical miles