Originally Posted by
MM/PM widget
I have had several flights were I had checked in and then later called about a SDC with no problem. I know at least one time the agent said "just a minute while I un-check you from the flight first" then processed the SDC.
Quite true, it is usually pretty easy to un-check in. Maybe paranoia on my part but those few minutes of unchecking before booking on the new SDC flt could mean a lost chance for UG, much less getting a seat at all. Probably not a problem but you can be sure if it ever is, it will be reported here first.