I recently needed to book a plane ticket, which is something I hate doing because it seems nearly impossible to know when to buy to get the lowest price. In the past I have used Kayak and Orbitz, which are good at identifying low prices at the times I want, but they are not good at providing future price predictions.
Bing has a great fare predictor feature that suggests whether it is time to buy or if I should wait based on past fare observations. It indicates the likelihood the fare will go up, down or stay the same and the potential price changes as well. There is no guarantee it will be right, but it gives you a good sense about the direction the fare will go and in my case for this flight it was correct and I wound up getting a nice deal. Check it out next time you need to go somewhere.
