The cost of flying has doubled since 2004 for most of the routes my family and I use. For many others, it has increased dramatically. While general availibility is slightly tighter, I have been able to ticket dozens of coach and first seats using saver awards over the past year. Even when you include the higher fees and surcharges, there has been an incredible *deflationary* trend in that I am able to achieve 2.x CPM for domestic travel I would have paid for otherwise, versus the 1.5 to 2.0 CPM I used to get.