"Cut out the middleman." It's the businessman's rule of thumb, but it sure doesn't apply to flying. In fact, airlines are likely to charge more than anyone else--and certainly no less. But if all else fails, call the people who'll actually be flying you where you want to go.

Even if you've already bought a ticket, call up an airline to see how much money you've saved by shopping elsewhere. You'll probably find that your time and effort were
well-spent!