I have some airfare secrets that might work for you. I think you have a couple of things working against you though, namely the holiday vacation timeframe and your location.
So, first - - I would fly out of Bradley or the nearest airport served by Airtran or Southwest. Prices are almost always lower in those cities because of competition for your money.
Second, be flexible with your dates, watch for last minute fares (like Ding!). If you didn't already know it, if you buy tickets on SW and the fare goes down, there is no change fee. The funds you have left can be used for a future flight. That's not true of other airlines.
You can also buy reward travel tickets on Ebay but it can be risky... They go for about $250 for a roundtrip on Southwest. You can also buy Ticketless Travel funds at about 10-15% off face value, so a $200 credit for $180.
On occasion, you can get a better deal by putting together two one-way tickets. Sometimes you can get a better price by routing your flight through Orlando to someplace else, and getting off in Orlando rather than going on to your destination. Do that on a one-way though, or your return might be invalidated.
You might look at Auto Train taking you from DC to Orlando, you'd still have a drive to get to DC.
You might also look at air consolidators like Funjet.com or Applevacations.com. I've seen air only to Cancun for $199 r/t using Funjet before. I think most of those places fly to Orlando as a destination.
Good luck!!