That's fantastic! The airplane thing is really no big deal... If you don't mind my asking, how old are you? Although it doesn't extremely matter. I was just thinking that might help me think of some things you can do. I've been on a plane a few times before (most of those times I was going to Disney) and every time I went, to distract myself I just thought about how much fun the trip is going to be, rather than the whole "flying" thing.. That may not work for all people. I would suggest bringing something to occupy yourself, such as a book (if you like reading), some paper (if you like drawing or writing), some sort of video game (if you like that kind of thing), music (to listen to, if you like music that is.... but who doesn't, eh? 
), umm a magazine (if you like reading them), crossword puzzles (if you like that kind of thing), oor even a movie on, like, an iPod or something! Also, I just read this on a website: "When you feel nervous, tell yourself calmly that planes are safe and try to think about your destination and how much fun it will be. Planes ARE safe and statistically, they are actually the number 1 safest way to travel! There is a very, very, very low chance of anything happening- a much lower chance than when you drive in a car, even." sooo yeah! You can think about that! You have a better chance at dying in a car crash than a plane crash! ... actually, don't think about that because then you'll be scared the entire car ride over buuut umm.... Yeah! Tell me if you want any other advice! 
Have fun!
Woohoo! You are going to Disney!
Don't be too worried about the plane ride, it goes by very quickly. I suggest bringing an ipod for music, a book to read, or a pillow to sleep on! haha. Everything will be OK. You are soo lucky to be going during Christmas time! It is SO BEAUTIFUL!! 
Although Disney World is in FL, it can still be chilly in December. I suggest bringing a sweatshirt for early mornings and nights. Sunglasses are a must have! A bathing suit is a good idea if you plan on swimming or visiting the water parks (weather permitting). Make sure you have comfortable walking shoes, because there is a lot of walking! The holidays are extra magical at Disney! 
Make sure you make time to see the special holiday shows, parades, decorations, and etc. Dont be too bummed if you dont see it all, especially considering youre a first timer. Just be sure to enjoy yourself and make the most of your visit, because its not every day that youre in Disney for the holidays! It is truly amazing! Enjoy yourself, take lots of pictures, and keep us DISers posted! 
I have probably been on ever 20 plane rides, because I travel a lot I know exactly the process of the airport/plane. There are usually pretty new movies and tv shows that you can watch which makes time fly by. we will be heading to GA then having a 2 hour layover there then from there we are heading to Disney!I was about 4 years old when I first went on an airplane
Some tips that I can suggest is that you don't think about to much, the more you stress about it the more nervous you will get. I personally try to think how fun the airport is because its the beginning of the trip. Going through the process can actually be quite fun
Try planning out some 'signs' in the airport to get you excited. I always look forward to giving my luggage up so that it can go to the plane, this reminds me that the next time I see it I will be in Florida, or wherever you are going
Now for the place ride, trust me, I have to admit that I do get a little nervous when boarding but honestly in the end theres nothing to worry about
Have a great trip, hope this helps
Sorry about you having to deal with seizures though 
You should take some gum because on airplane rides, your ears pop and it can get uncomfortable. But other than that, the plane rides are half the fun and just listen to music, read a book, take a nap whatever you please Hope your trip goes well, tell us about it when you can too! I'm hoping that I won't have any seizure while down there. I know i'll have alot of fun though and i'm very excited to go!!!!!!!!!!Thanks everyone
even though they're super ugly that's the only time of year I've gone, and crocs are perfect for the weather! you HAVE to see the Osbourne Lights at hollywood studios! I LOVE that! they also make wishes (the firework show in magic kingdom) all Christmas-y by adding a "castle light-up" to it. it looks SO pretty! in the world showcase in epcot, they have the santas from each country. in the american part of world showcase, they have the candlelight processional, but you need tickets and they could sell out (they have celeb speakers!). just a warning, if you aren't going to mvmcp (mickey's very merry christmas party) in magic kingdom, you have to leave pretty early on nights they have it. maybe around 8 pm? have fun! 
