This is an easy task for just about anyone, as long as you have a computer with Internet access.  That is the perfect place to find cheap airfare.  There are special sites like sidestep.com and mobissimo.com that allow you to search all the airline prices on the net.

The lowest prices will be shown first.  Go ahead and pick a ticket or if you do not think the prices are good enough try other websites.  There may be even better prices elsewhere.

This shows the power of the World Wide Web.   Now, all the lowest prices are ready for you after a simple click.  It will also give you plenty of insights.  One common insight is that airline tickets usually cost less early in the morning when compared to flights later at night.  Sometimes this is caused by a flight that is far from full so they decide to fill it up some more.

Some websites use a certain strategy of buying tickets at a wholesale price.  This allows them to offer it at a lower cost.  They also have to lower the cost or they will not be able to get rid of all the tickets that they bought.  With these sites you may want to wait until the price drops on a particular ticket to a level that you are willing to pay.

There are a lot of travel websites that give you numerous options in their search engines.  This allows you to find future flights with lower prices.  Many of the sites will also give options that will notify you when certain tickets reach a certain price.

One more route to think about is purchasing your airfare, hotel, and car rental all in the same package.  Many times this will reduce the cost to a lower price than if you buy each one individually.