Google Flights will now alert travelers when flight prices change

SAN FRANCISCO, CA - AUGUST 24: A plane takes off from San Francisco International Airport on August 24, 2012 in San Francisco, California. (Photo by Justin Sullivan/Getty Images)

SAN FRANCISCO, CA - AUGUST 24: A plane takes off from San Francisco International Airport on August 24, 2012 in San Francisco, California. (Photo by Justin Sullivan/Getty Images)

Looking for the best deal on a flight? A new Google Flights feature might be able to help.

And it means a lot less frustration for those who have looked up prices for a flight only to check again days later and find a higher rate.

The feature uses historical flight data to make predictions.

Searching for flights between cities but don't have concrete dates?

Plus, if a customer isn't quite ready to enter his or her card information, the traveler can choose to track a flight or route and receive notifications via email with updates of prices changes and expected price changes.

 Read more at Google.