No, that's intentional. A certain percentage of every flight is no-show - they bought a ticket, but never showed up for the flight. So by overselling, you actu

No, that's intentional. A certain percentage of every flight is no-show - they bought a ticket, but never showed up for the flight. So by overselling, you actually get a fuller plane and more tickets sold. This starts to break down when the no-show ratio drops for single flights, though.