Sometimes it's cheaper to fly into a smaller airport instead of the major one. You've probably read about San Jose versus SFO or Fort Lauderdale versus Miami. And, many times it is cheaper.
Remember to figure in all the facts when looking at fares, though. Will transportation costs be greater? Will you spend more time on the road? Is there the transportation you need?
When you take into account all the fees, times, and in some cases, convenience you may be surprised which one is cheaper.