When I go to WDW, I usually change planes in Houston (at Intercontinental-is that the same as Bush?), then fly direct to WDW. It's Continental, and the one I take leaves Houston about 8:15 am. I think Southwest goes through Hobby, but the plane stops (no change, though) in New Orleans. I'm sure about that Continental one though. Hope they haven't discontinued that one-it's almost always the one I take!