Assuming you are quick, take bus 111 from the airport at 11.11am to the last stop in downtown Long Beach which is the Transit Mall Center arriving at 11.55am. From this same location you then take a short ride at 12.10pm on the free RED Passport bus "C" arriving at the Queen Mary/Cruisehip Terminal at 12.31pm
Easy, Real Easy.
Note: Next bus after 11.11am from the airport is at 11.51am. The Red Passport free service bus depart aprroximately every 10-15 minutes rom the Transit Mall Center.