Google has announced updates to its Google Flights search tool that will allow it to: 1) Predict changes to airline fares and notify users about price changes for flights they have searched. 2) Inform users how long current fares are expected to remain in effect and provide tips on alternate routes if prices are predicted to increase. 3) Set up reminders to notify users via email when flight prices are expected to change or when prices actually fluctuate for specific flights they want to track.