JFK terminal 7 doors open around 4AM. UA counters have power turned on and chicken screens ready for use at 4:30AM. Personel saunter out of the back rooms at 4:45 or whenever pax begin to get annoyed at the wait.

Security opens between 4:45 and 5AM. As a red-jacketed woman told me recently, it depends upon how long the morning meeting drones on. Sometimes there are quickly 3 lines open, sometimes only 1 and the line stretches back to the outside doors.