On a Princess cruise, the "Final Boarding Time" or "All Aboard" time is strictly enforced and is typically 90 minutes to 2 hours before the ship's scheduled departure from the home port. For example, if your ship is scheduled to sail at 4:00 PM, you must be checked in and on the ship no later than 2:30 PM. This window is a legal and operational requirement for the cruise line to finalize the manifest and submit it to government and customs authorities before departure. In 2026, Princess utilizes the MedallionClass technology, which streamlines the boarding process significantly; however, this does not change the hard cutoff time. If you arrive after the gangway has been pulled, you will likely be denied boarding, and you will be responsible for all costs associated with traveling to the next port of call to meet the ship. Princess strongly recommends that passengers arrive at the terminal city at least one day prior to sailing to account for any flight delays or traffic. Once the ship is "closed," the security and check-in systems are deactivated, and the crew begins safety drills, meaning late-comers are almost never permitted to board, regardless of the reason for their delay.