If they can carry their bags off the ship during the early self-disembarkation, and if they have transportation to MCO awaiting them, they can get to the airport in about 35 minutes. They should have all their boarding passes printed out. If you're checking luggage to your airline, that starts to eat-up time. But the biggest problem are the security lines. Assuming everyone does not have TSA-Precheck, the biggest time risk is getting through security. Some lines lately have had 2 hour waits to get through.