Yeah, the cost of a flight alone is often cheaper than driving. The issue that I am getting at is that flights do not provide door-to-door service. The transp

Yeah, the cost of a flight alone is often cheaper than driving. The issue that I am getting at is that flights do not provide door-to-door service. The transportation to/from the airport at either end can often be significant, as many parts of the US are not accessible via public transit. And rural destinations often have no final-destination options other than an expensive rental car. It is common to incur these costs.