A related question. I'm doing a front end deviation, and using the FEDEX online system to select a flight. I specify Coach (Y) Class in my search. All airlines return Coach Class fares except United. That airline returns First Class fares for some reason. Also, those United First Class fares are as cheap, if not cheaper, than the other airlines Coach Class fares. Any idea why the system does this? I seem to remember something about United offering us free upgrades to First Class. Don't want to book a deviation ticket that will come back and bite me at expense report time.