The calculated distance (air line) between San Pedro Los Baños and Tlalnepantla is approximately 41 miles respectively 66 kilometers.
By car or train, the actual journey to Tlalnepantla is certainly longer, as only the direct route (as the crow flies) between San Pedro Los Baños and Tlalnepantla has been calculated here.
Air line (approximately)
66 kilometers
36 nautical miles