I am a corporate air broker, meaning I sell 500+ airline tickets at a time for companies that are having meetings in a different city, so I watch airfare daily all over the world. There are deals to be had, but "typically" they are not universal sales. They are specific routes on specific dates. You may get lucky and get something, but I have found that after Thanksgiving airfare (in general) goes up until mid January, and it doesn't matter what your travel dates are. If I had specific travel dates, I would not wait for a Black Friday deal. I would shop now, or wait til spring. If I just wanted to go on a vacation to somewhere, I would hold out for BF/CM and see what deals were published.