Friday you will find major traffic jams near every mall!
Thursday should not be a bad day to travel. Places like large cities, such as LA CA, the traffic can be really bad, as everyone is going to see family, then some are drinking a little to much and trying to drive home.
The interstates should be fairly light traffic, with most big rig truckers home for the holidays. You might find it difficult to get gas in some small rural towns, but most large gas stations long a interstate should be open.
Good luck!
Fred.
