Originally Posted by
rehoult
The same day J stand-by list clears before the upgrade list. The stand-by ability is a major benefit of buying J class tickets and leaving room for such pax is the primary reason that they don't just clear the upgrade list at T-24 hours.
Correct if the gate agents do their job properly, the above order of list clearance will occur.
However if the agents are not aware of the J sby pax, they can clear the upgrade list before the j sby list and have all seats taken by upgrades. This can be simple oversight by the gate agent if they are not expecting a J sby pax as this type of pax is usually cleared at checkin.
Overall if a pax holds a J SBY BP card they should present themselves to the GA and advise that they are revenue J SBY pax.
J SBY pax are most often non-rev passengers hold C1/J10 or deadhead Captains. Crew members are picked out by their uniform. C1/J10 pax list is cleared after upgrades (IIRC).