I have had good luck finding relatively cheap fares using air-fare.com. They post the (supposedly) cheapest fares available each day. If you look at STL to MCO today, the cheapest is $172, but with certain restrictions. I have had good luck in the past finding a fare on the web site, then calling the airline directly and requesting whatever code. At Christmas 2001 I got St. Louis to Orlando on a Delta U fare for $115. Good luck, and if you find a good fare, please post. I'm looking for St. Louis to Orlando June 1-13.