Originally Posted by
Mwenenzi
You can only change to flights that have A availability. A (or downgraded D) can be hard to get at times. Open F seats on a flight will generally not be released for A.
Surely you can still have Open segments after a re-issue? It's true, of course, that you can't have a confirmed reservation unless you get availability in the appropriate bucket.
People have, however, reported that the AA RTW Desk has, on request, had success in getting available seats released by AA Revenue Management. Other carriers (JL?) sometimes wait till the last minute while some (QF on the 380?) don't ever want to dilute their First Class per seat earnings, or so it seems.