Welcome to the Disney Parks Moms Panel, Megan!
Utilizing Disney's Magical Express® Bus Service from Orlando International Airport to your Walt Disney World® Resort Hotel is a magical way to travel. I love being able to relax and let Disney do the driving. This service is also complementary, which makes it even more magical.
You will not need a carseat or booster seat for your little royalty, they will ride as a lap-child. In fact, there is not a way to secure carseats in these comfortable, motorcoach style buses. They will be safest in your lap. Another Magical Express® tip: any strollers you will have with you will be stored underneath the bus with your luggage, tie a colorful ribbon on the handle as many strollers look alike when folded.
I hope this information is helpful as you continue to plan, Megan. And please do not hesitate to reach out to us with any additional questions you may have. We are here to help with even the smallest details of planning a vacation to Walt Disney World® Resort.
I'm sure you can't wait to be whisked away!
Faith