Officially, they recommend flights after 11:30am. We booked an 11:35 flight on our last cruise, left at 7:20 immediately after the main dining breakfast ended and they made the announcement you could disembark, arrived at the airport around 8:30, checked our bags, went through security, and were at the gate just a little after 9am. So I think you could maybe do a 10am if everything went off without a hitch. BUT, I would go with the official recommendation of 11:30 because if the boat had taken longer to give the all clear to disembark for any reason, or we had a bad security line, etc., it might have been a different story.