Jane:

These are the directions from the Foxwoods website. The Mohegan Sun is about another 15-20 minutes from Foxwoods.

From Boston
Directions: Take I-95 South to Exit 92 in Connecticut. Go straight at the stoplight. At the next stoplight, turn right onto Route 2 West. Foxwoods is eight miles west on Route 2. Drive time: 1 hour 45 minutes.