Our flight was with Westjet at 11am, and it was actually too close for comfort. We got there with about 30mins to spare. It didn’t help that cruise porters we’re on strike.
DCL highly encouraged us to walk your own luggage off the ship. I think everyone got the hint and it was madhouse trying to get off the ship. Line was all the way down to Tianna’s then wrapped around the elevator area then into French quarter.
We also booked the DCL transportation back to the airport. On embarkation day you share same busses other cruise ships uses so it can get busy. Your 330 flight should be fine. Anything before noon is a bit nerve wracking.