Hotels maybe, but airfare is not going to change because you're in incognito or clear a browser. I rarely see any price differences between an Expedia and booki

Hotels maybe, but airfare is not going to change because you're in incognito or clear a browser. I rarely see any price differences between an Expedia and booking direct. If an airline was messing with prices based on something with your computer you would be see frequent large differences in prices between direct bookings and third party bookings, which I've never seen before.