We just returned from our Sept 25 Wonder cruise. We had early seating, so our breakfast was at 6:45 am. When we finished the ship had already been cleared of customs and we walked off the ship around 8:00 am. We had a rental car in the parking lot to drive back to airport. We returned the car and were checking are luggage in by 9:00am. Of course our flight wasn't until 1:20. We tried to get a earlier flight, but everything was booked. If you use a limo service you could do this even faster, so I think you shouldn't have any problems making a 11:20 flight.