Originally Posted by
brewdog11
Glad it helps! It is technically possible to walk between any of the terminals at DFW without leaving the secure area.
Just in case anyone else stumbles on this thread, I want to correct this statement. It is NOT possible to walk to Terminal E inside of security. I'm not sure why the connector was never built, or if it was never even planned, but the only way to get to Terminal E without exiting and reentering security is on the train.