Flight tickets often keep changing in price when browsing online, no matter which browser you use. However, there is a loophole in how websites and online traffic works, that you can exploit to your benefit. Cookies are essential aspects of online web browsing, and airline websites use them to try to keep a track of the number of times you have searched a topic of interest or service they can provide you. Flight ticket prices change after you are done searching a few times in your web browser. This is because of the cookies in your browser, for when you search, flight prices change and increase when a particular route gets repeatedly searched to trick you into booking the flight tickets quickly. To avoid falling prey to this trickery, always search for flights in incognito mode to see the lowest prices.