Originally Posted by
ConciergeMike
Not saying that it's logical or possible because I don't know DCA, but just from looking at the map it looks like if NW owns its space in A, they could either displace everyone else and bring DL to A, or sell the space to someone else and move to the current DL area. Will (hypothetically) a move by AA and F9 open enough space for CO and AC? That way, *A is in those two piers.
The problem is that NW does not want to give up its current space (cheap). The plan was to tear down the NW wing and expand along the old, historic terminal. But if anyone moves into the old terminal (no one there now) then they would have to pay the entire rent on the building. I guess the gov't pays it now - which owns the DCA/IAD airports.
Probably not a lot of reason for the airlines to move around. Really no connecting traffic through DCA (other than maybe a little on US) - so likely not an issue to keep separated.
I do not see any of the current airlines wanting to move out of the new DCA terminal and move to the NW terminal - and there is not enough room to move NW over by DL.