The most recent AC sale which ended yesterday at mid-night actually had inflated prices and the prices increased by $40 across the board on the last day of the sale. That increase came despite very little sales resulting from the so-called AC sale prices. So it looks like AC is not really yet pushing hard to fill the seats on this route despite the planes being largely empty. Clearly you have to watch very carefully for the right price to come up and, if you are lucky, get a discount code.