United_fan is correct. Remember, theoretically Mid-Altantic does not exist. It runs off of the USAir operating certificate. It is just like MetroJet....a brand name. Why does it say US AIRWAYS EXPRESS on it? No one can answer that. Some thoeries are because it is made up of furloughed employees making a lot less than they did at US AIRWAYS. Putting "EXPRESS" on the side further confuses things.