I just took a look at what's available on the Wednesday and Sunday of Thankgiving weekend. Between Boston and New York, there are already quite a few trains sold out. In other parts of the country, there seems to be quite a few seats left out of Chicago and Emeryville. Boston-Portland, ME is wide open too at this point.
There's only one extra train on the east end of the NEC. Amtrak could probably run a couple of more around midday and sell them out as well.
There's only one extra train on the east end of the NEC. Amtrak could probably run a couple of more around midday and sell them out as well.