The 2015 ACC Football Championship Game has been sold out. After the North Carolina Tar Heels clinched their spot in the ACC Championship Game, the tickets were sold out just a couple of days later.
The main reason why the game has been sold out, in my opinion, is because of its central location and prime importance. Both teams have a lot riding on this game and it is within a days drive for most fan-bases. As a matter of fact, the drive to Charlotte is actually closer for a lot of Clemson and North Carolina fans than to that of their own stadium.