Originally Posted by corporate-wage-slave

First to ATL was a historical route due to Coca Cola and some of the financial services sector using that cabin, which I suspect they are no longer doing. More recently for those "First only" travellers who were looking for redemptions via somewhere other than NYC, ATL often was the way to do it. I don't have any insight to this, but I bet it's just an equipment swap and that at some point First may again go to ATL. I wouldn't read much into this, other than that First capacity is a great deal less than it used to be in BA, and many other carriers.