Originally Posted by
5khours
If business class if fully booked, you can not buy a J class ticket. Period.
...where "fully booked" is defined by J/C/D/Z/P=0, not the seat map (or the ability to select a seat, etc.)
Originally Posted by
WineCountryUA
not true -- if F is wide open, UA has/will over sell J (a few seats) close to day of travel and op-up if needed.
J would be >0 (at the time of booking) in those cases.