Ours said that last year as well. I think we were pulling into our spot around 6:45/7AM. Express walkoff ended up being around 7:30/7:45AM. (We had first breakfast seating, then waited for our luggage tags to be called, off the ship by 9AM...couldn't find all our luggage and had to fill out a claim form, did customs--very easy for US citizens, then outside by 9:30AM.) Airport is 1/2 hr drive (without traffic) from port. Disney says earliest flight time should be Noon, so you should be okay if you do express walkoff.