Originally Posted by
Frindle
US CP can now be waitlisted, day of, but only US CP (Emerald).
Doesn't matter what status you are on US, but no elites including CP can be added to the airport list for an upgrade on an AA flight. There is a "back-end" way that agents can add CPs to the upgrade list but technically they aren't supposed to.
Its nice when it happens but by no means something that should be expected.