I don't have anything to say on disney, but I have taken my pistol on a plane flight.
check with your airline, I went on southwest, and they have very good info on their web site pertaining to their company's policies and also the FAA's, make sure to check all the FAA requirements
Or course, weapon has to be checked, I purchased a metal sided container made for firearms, has 2 latches and place for padlock to secure the lid which is required. I recommend the locks that the FAA recommends because the security personnel have the ability to open the container along the way so you won't get paged to come unlock it, got mine at walmart, they are labeled with a red symbol showing they are for airline security use. I put the case in my roller bag.
Anyway, when you check it you have to show that its unloaded, no mag in, at the first place I checked in they wanted me to leave it unlocked for them to send my bag through security, on the return trip they had me lock it when they checked it.
I had 4 empty mags and a plastic cartridge box, can of OC, holster, and my knife all in there. Had no problems with anything but the lady at the counter in Houston must have been an anti...her attitude toward me changed when I said I had a firearm to check
