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