There is frequent public transportation between the airport and uptown Charlotte
Despite what post 1 says, there is frequent bus service between the airport and uptown (center city) Charlotte. A Charlotte Transit "Sprinter" bus leaves every 20-30 minutes from a bus stop located outside the lower level of the airport; if you're leaving baggage claim, exit and go to the right. The fare is around $2-ish and the bus will take dollar bills and coins. Schedules are available by looking for Route 5 below:
http://charmeck.org/city/charlotte/c...s/default.aspx