Originally Posted by
redburgundy
You must call UA international reservations once a week and ask them to send a message to LH requesting the upgrade, because LH does not maintain a waitlist.
During the last week before the flight, you must make this call to UA every day.
You must not expect the upgrade to clear until a day or two before the flight.
(Bolding mine) I think that LH may actually maintain a waitlist, they just won't put UA requests on it. My reason for this thinking is that I have an LH flight next week FRA-DEN and my TA has access to LH systems. She went in and requested I class for me (just playing around, really) and the system took it. I still shows several days later as requested. I have no idea what will happen if they decide to give it to me. They may pull miles or expect a cert next week (I have a SWU printed for LH that I was planning on trying to use). Of course, the flight is pretty much sold out (0-3 seats avaialable any given time I check) so I'm not holding my breath.