Most people are already at their destinations on Christmas Day. So, traffic will actually be lighter than usual. The only downside is that not many services will be open that day. So be sure to start with a full tank of gas and expect to fuel-up when you can.
Most traffic that day is local. You probably won t encounter much until you get close to New York, when you might hit traffic of people moving around the metropolitan area to visit relatives and the like.
I honestly can t believe that traffic will be much of an issue on Christmas Day, no matter what time you leave. Obviously though, the earlier you start will make the traffic flow even lighter and easier to deal with.
Its christmas so no one is on the roads really, the trip should be a quick and easy one!
Roads will be pretty much empty except for cops and state troopers.