Flying Somewhere? Try Skyscanner.
Available from Skyscanner
Description
Chances are if you travel, have seen travel deals or word of mouth then Skyscanner was part of it. Skyscanner is a website that tracks the lowest prices available per day/month so you can fly cheaper at a specific date. That is, if you're willing to wait that exact date.
Hope this helps. It's the website I and many use to check for lower priced flight deals.