February 25, 2009 at 10:48AM (PST)
A Quick Look at Airline Prices: I found this site quick and easy and it gave me lots of valuable information. It compares fares along a route for multiple airlines allowing you to choose what works best for you. It also allows you to have other travel site searched at the same time so that you can "comparison shop" from one place. Additionally, the site gives information on specials and low fares from the departure airport, "cheapest time to travel" information, and other interesting tidbits that may be helpful to travelers.
The only negative was that I had to wait awhile for the results. I intentionally picked a route that would probably not be normal just to see and it did take a bit of time. But the results were good and definately usable. Overall a decent site if you are looking for comparison or don't have a favorite airline you plan to fly.