You need to be at the platform, completely ready to go, 1t minutes before your scheduled pick up time. Make sure you allow enough time to pick up anything you have left at bell services
The letter you get the night before will explain your times. If you want to drop your bags and them take for you you need to be there earlier. The three hour window is just for actually boarding the bus.
As Alesia says, you need to be there 15 before the time they give you. The time you’ll be given is when it’s scheduled to leave the resort, not when it arrives.
Okay, what if the only flight home you can get is at 7:30am. Does the Magical Express run that early and if so what time would I have to leave the resort to get there in time?
DME runs 24/7. Pick up time will still be 3 hours prior to your flight. That early though, you will not be able to use RAC (Resort Airline Check-in) for your luggage. You'll have to take it with you on the bus.
Okay, what if the only flight home you can get is at 7:30am. Does the Magical Express run that early and if so what time would I have to leave the resort to get there in time?
That early I would stay at the airport the night prior. Just say your on one of the last flights or something to catch a late ME. Then can a ride to the hotel via shuttle.
That's me though no reason to pay Disney hotel prices for a 3am wakeup.