Originally Posted by
venk
While passport number, in theory, can wait until last minute, US travellers with Global Entry will need to have entered their KTN at least a few days before so they can get the Pre TSA check on their BPs. Have no idea where this would be done on JAL website or app if booked via JAL.
Global Entry Pass ID can be entered during online or in-person check-in; there is no minimum time requirement.