Originally Posted by
donotblink
Does anyone think it's likely that at some point the Port Authority will try to build another runway or two at JFK (I'm not sure there's space to do that at LGA) to add capacity at JFK. I'm sure United (and to a lesser extent, American) would jump at the opportunity to get more slots there.
The problem doesn't seem to be runways but congested airspace, in part as the equipment ATC uses is decades old.