You can find a tour operator that will bundle together your airfare, accommodation, in-country travel and even tour excursions while you are there at a discounted price versus paying for each facet of the trip separately.
While conventional wisdom dictates that you'd find the best deals on airfare on travel websites close to your departure date, Orbitz specializes in cheap tickets for flights you are willing to book months in advance.
A simple, nonstop plane ticket between two relatively close destinations and major airports can cost well over $150 today, whereas years ago the same airfare may have been advertised as a super saver rate for less than $50.
Perhaps it is a non-Disney affiliated contest, a special airfare deal, or another official Disney promotion - no matter what the arrangement, these deals and chances for free or deeply discounted tickets are available on a regular basis.
Most often, however, this simply means adding a blanket cost of several hundred dollars onto the cruise fare charges to cover the airfare, which is, in fact, just bundling the two together and charging the guests for the entire package.