I haven't done it yet, but I would love to. We hardly travel with my HUGE, 300lbs. power chair, just because of the difficulties of finding transportation for it, having to rent a wheelchair van (when my mom feels more comfortable renting a car, and due to the cost of rental wheelchair vans being so expensive), and the chances of it being "damaged" from the airline, to where it wouldn't work anymore, or something similar.
However, I'm hoping that the next time we go to Disney World, I'd be able to experience the chance of driving a power chair around the Disney parks, by renting a folding one from my DME dealer, here at home. Since I need special seating in my power chair, going through them would work for me, because having one of the employees who knows me really well, and knows my seating needs really well, he would be able to find the right folding power chair for me, that my seat back (Jay 2 Deep Contour, with attached chest posture belt and headrest) that I use on my power chair now, can easily fit onto.
I've heard that having gel-cell batteries, is a must-have for a power chair, when traveling on an airplane, and from traveling with my manual wheelchair, gate-checking the wheelchair, is the definite way to go.
Samantha