First, find out the distance from the airport to the seaport...you can usually do this on mapquest or by going to the airport's "directions" page. If it's only 10-25 miles,I grab a cab. Celebrity WILL provide transportation - call Travelocity and ask them - it is inexpensive. Or just call Celebrity. However, unless it's a long drive to the seaport, I don't want to have to wait for a "group" to form before they take me to the ship. I always want to be first aboard!! The "arranged" transportation (large vans or buses) leave the airport every 45 minutes or so, after they have enough people to leave. I've done it both ways.