Originally Posted by
nighthawk117
It could also suggest that the yields are so good they can afford to sell the last few seats off cheap.
Unfortunately the airline industry does not work like that, if the price is cheap just before the flight then that indicates a poorly loaded, poor yield flight. Look at FR who frequently charge high prices just before the flight (mostly) and where they don't the flights are lightly loaded so they try to cut their losses from an attractive far structure in the hope that ancillary spend will enhance the overall yield.