The Internet’s filled with websites that claim to know the best day and time to book airline travel, but it’s much too complex to be that simple.

If you generally plan your trips in advance, checkout the website and app from a company called Hopper.

Hopper helps you with tips on the best time to shop, buy and fly a specific route.

The website lets you run reports to lookup what a good deal is for any trip you’re considering before you start shopping and if you’re flexible, drill down to the best days to fly.

Their data mining also predicts whether prices are likely to go up or down and which airlines are generally the cheapest for your route.

The iPhone app will monitor your desired trip and constantly check prices to find great deals and can notify you the instant you should buy.

If you looking for better information before you book a flight, checkout Hopper.com for the app and a link to their travel reports.