Hi njcommodore, I was going to post just this as a reminder this morning, but, you've beaten me to it. I don't expect everyone here will believe me, but, the intent was not to take away the ability to see if upgrade space is available or not when purchasing. This is valuable information. Checking the "MileagePlus Upgrade Award" box on the advance search page isn't the most intuitive way we can do this, but, it is the current way to get to this information when booking.

Shannon