When searching for airfares online, one of the great frustrations can be highly variable prices.

You can find a great price on an airfare or hotel room one day, and it’s gone the next.

But now there’s a Web site that might be able to help.

Johnny Jet tells us all about it…

Are you baffled or frustrated by the constant rise and fall of airfare prices?

Well, a Web site called Yapta.com tracks airfare prices and alerts consumers to price drops on specific flights.

Best of all, the service continues to track prices even AFTER tickets have been purchased and alerts consumers when they’re eligible for a travel voucher or cash rebate!

The first step is to download the free software.

Then, shop for flights like you normally would on these airline/online travel agency Web sites: Alaska, American, Continental, Delta, Expedia, Frontier, JetBlue, Northwest, Orbitz, Southwest, Ted, Travelocity, United and US Airways.

Once you price out a flight on one of the sites listed above, “Tag It with Yapta” displays next to the select button, which enables Yapta to track prices and alert you via email if/when the price drops.

This way, you can either get a refund or buy that low-fare ticket on the non-stop 9 a.m. flight that you really wanted to take to begin with.

Johnny Jet can be found online at JohnnyJet.com.