How do I find flight price data?
Also, how can I check flight price history?
Go to the Google Flights homepage and click the menu icon on the top left hand side. From there choose “Tracked Prices.” You can track prices for routes and destinations but you can't view the historical data beyond a very simple line chart. Hopper is an app that shows you when to fly and buy.
Considering this, do flight prices go up when you search?
When it comes to booking flights, in particular, you can see prices going up in real time as you're searching airfares online. So, the airlines bump up your price and you pay it. It's a win-win situation, but only for the airline. They get your money plus they get a higher price than you should be paying.
As you might expect, fares can change because airlines purposefully raise or lower them, or start or end fare sales. There is another reason why the lowest available fares fluctuate. It is because various fare categories are constantly becoming sold out or getting re-opened as other travelers buy or cancel seats.