There are many factors that influence the price of airline
Our detailed how-to guide spells out how to find mistake fares easily on your own. Basically, AirFare Watchdog and Secret Flying are great resources to stalk for finding mistake and sale pricing as they conglomerate slashed ticket rates all in one spot. Another great approach is to search for flights for an entire month using Skyscanner (Tip #3 in this article). This will allow you to easily spot a significantly reduced fare against what's displayed that month, and has twice helped us stumble on error fares ourselves.
They often know the market well and can predict when
Airline tickets can be expensive no matter how you look at
You're not crazy for thinking that a flight price has changed after searching it a few times in your web browser. Based on the cookies in your browser, flight prices do increase when a particular route is repeatedly searched, as the site wants to scare you into booking the flight quickly before prices get even higher. Always search for flights in incognito or private browsing mode to see the lowest prices.