Trying to decide when to purchase your flight tickets for that summer vacation? It doesn’t hurt to check www.bing.com/travel  to see if you’re getting the best deal. Bing’s price predictor is a great way to gauge the patterns of air fare. Just enter your trip itinerary and the site will tell you whether to buy your ticket or to wait. The information is based on price trends and historical fare data.
If you would like a more in-depth look, click on ‘Fare History’ to view the pattern for an entire year.
Note: While writing this I discovered that while the ‘tip’ to buy or wait will always appear in the results, the Fare History link showing the additional information is not available for all itineraries.