Hi Kelly,
Welcome to the Moms Panel! How exciting that you and your daughter will be taking your first cruise together. I love the 4-night voyage from Port Canaveral, it is the perfect duration to "test the waters" for your first cruise.
The most convenient airport to fly into for your Disney Cruise would be Orlando International Airport (MCO). Simply purchase the port transfers through Disney Cruise Line, and the rest will be a piece of cake! Once you arrive in Orlando you will board a motorcoach to make the 45 minute journey to the Port.
Your bags will be retrieved by the cruise line (as long as you tag them with the luggage tags provided with your cruise documents), and will arrive at your stateroom onboard.
For more information regarding the transfer service, click
HERE and scroll down to the Ground Transportation section.
Hope this helps - let me know if you have any further questions!