I would wait until the dates and site of the game(s) are known. You could buy two tickets to SAN now and they play on the road. Or have a bye the first week...
You would have options out of CLT, GSO, RDU, CAE and probably some others. Options into SAN, LAX, SNA, etc. Play with routings and airlines to find something cheap on a 7 or 14 day advance purchase. Right now there are fares for $250 on AA CLT-DFW-SAN for this weekend, so it does not look like it will be too expensive.