Hi Laura,
You might want to think about making alternate plans for your transportation back to the airport. Unfortunately,
Disney's Magical Express will only take you from the resort where you have been staying. You will receive a notice the day before you check out with your pick-up time. The pick-up time is typically three hours before your flight, so I would guess you time will be between 5:30 PM and 6:00 PM.
You *might* be able to make it back to your resort in time to catch your bus, but you will be cutting it close. You might consider arranging a taxi to take you back to your resort or on to the airport.
I wish I had better news for you, but I think you're ending your vacation on a high note with a dinner at
Hoop-Dee-Doo Musical Revue! Thanks for stopping by the Disney Parks Moms Panel. Be sure to let us know if we can help you with any other questions!
Wishing you a magical vacation,
Amy H