Originally Posted by
Often1
Yes, there is an airside shuttle (and has been for over three years) between the north (US exclusively) and Central (UA, some US and some others). It operates during times when there are connecting flights. Is less than a minute between piers and they are very acommodating about making special runs for tight connections.
There is a shuttle between the north and middle piers. Its operated by US.
The middle pier is US, UA, and AA.