Originally Posted by
handlebear
How far out does United know which aircraft they will use for a particular flight? I have a ps flight coming up. Right now, it's showing the new ps config. Odds are, it will change back to the old. United has a tendency to change my seat assignment (currently 1A/1F) when they change aircraft, so I want to watch my reservation like a hawk when the time approaches.
3-4 days outs (although may change earlier -- AND may change anything prior to actual departure) things start to settle out.