I am very new to this site, so if I screw up adding this post then I apologize in advance.
I am 22 years old and I have been to disney world 26 times in my life. I have NEVER driven, always taken a flight.
More recently - as I got older and had to pay for flights myself, I realized the HUGE savings in taking a flight from Buffalo instead of Toronto -which is where I am from. The best deals I have found were with southwest airlines or jetblue
I dont think they post flights until 4-5 months in advance so keep your eyes open on those websites and try to grab a deal.
PS: Just for an idea of the deals I have found with those sites, last year I went in May and I paid $208 round trip from Buffalo International airport to Orlando International Airport.
HOPE YOU FIND SOMETHING!!