please take the airport's advice and arrive early. They are recommending arriving at the ticket counter 3 hours before your departure, at the security checkpoint 2 hours before departure, and at the gate 1 hour before departure.
If you are fortunate enough to be going to the game, make sure you are there early enough for your flights so you do not jeopardize the investment you have made in tickets and flights. A LOT of Tiger fans flew out of GSP today and it went smoothly largely because passengers got there early. Parking lots are getting full. The airport will have an overflow lot open if needed. It is one of the lots near the rental car lots which are near the intersection of Hwy 14 and GSP Drive.
Wear orange, enjoy the trip and have a safe flight. Wish I could be going too!