Dear Jennifer,
Thank you so much for reaching out to us here at the Disney Parks Moms Panel with your planning question!
How exciting that you were able to get the
FastPass+ selection for
Avatar Flight of Passage that you were looking for. It is such an amazing attraction, and though it is well worth the wait in the queue, I also love maximizing my FastPass+ selections!
In terms of
Disney's Magical Express, you can only take it from the Walt Disney World Resort hotel at which you have been staying, so you wouldn't be able to leave from any hotel but your own.
However, taking Disney's Magical Express may not make sense for your plan that day at all. You might be better off using your FastPass+ selection right when it opens
up, and then quickly heading out to the
Disney's Animal Kingdom park entrance where you can pick up an Uber or other pre-arranged car service. Be sure to have your resort airline check-in done well ahead of time, however, because you won't want to carry your luggage through Disney's Animal Kingdom that day!
Hope that helps with your magical planning!
- Jan K.