Doubt if there is anything cheap ex-CLT but try a nearby airport like GSO or RDU. I see a 4 segment/2,000 q-mile GSO-ATL for $101.50 inclusive - no minimum stay. There's also a RDU-SAN for $148 ($169 inclusive). Good for at least 5,000 q-miles and maybe more if you can get a lot of connections.
Go use Travelocity's dream maps feature.