We were on the Oosterdam, returning to FLL in January. Disembarkation time is entirely up to US customs. Even tho we were in FLL and docked very early, we were in the first group to leave the ship (minutes after the suite people) at 8:40 am. Best to take cab to arport, else you will wait and wait for bus to fill at pier. We have been off much earlier than this at other times, but Hal emphasizes that it is necessary for customs to clear the ship first and that time cannot be predicted..