Hi Samantha!
Welcome to the Disney Parks Moms Panel. I am so excited for you to return to Disney after such a long hiatus! I'm sure you'll see quite a lot has changed since your last visit.
Disney's Magical Express is a wonderful service that I always take advantage of when visiting Walt Disney World. To be able to utilize this service, your sister will need to make sure you are listed as a Guest on her reservation and then you'll be able to utilize the complimentary round trip transportation between their
Walt Disney World Resort hotel and the Orlando Airport. Once you are on the resort reservation, either you or your sister can call (407)939-1936 and add your flight information so you'll have a Magical Express reservation. Just make sure to have her hotel confirmation number handy as they'll need this when you call!
If for some reason your sister is unable to add you to their resort reservation, you will unfortunately not be able to use this service as you must be a listed Guest to use the Disney Magical Express. If this is the case, please look into
these other transportation options to get you to their resort.
I hope you have a wonderful trip and please let us know if you have any other questions!
-Lindsey