Is It Possible To Make Flash Game

Is it possible to use Unity to export games in to .swf file type for flash games on websites such as kongregate? If so where do I begin?

No, it's not possible, but on the other hand, Kongregate supports unity files now, so you can just compile for web

It's not possible now, but Unity announced on February 27, 2011 that it will become possible in the future.