Yep, I double checked it Oli, in MapQuest it was listed as 5 hours with current traffic. It would probably have $25+ in tolls too. I have a buddy that gets up to the New England states a lot, I'll have to ask him.
Route 95 goes from up north all the way to Florida. Heading north it picks up in Richmond and is horrible from DC through Baltimore, Philly, through NJ, NY city and up to Boston...it hits all the liberal anti gun hotbeds. Most of the way from DC to after NYC it's 6-8 lanes wide.
Edit - it would be $40 in tolls drive rt 95 all the way. PA doesn't have any but NJ would be $15 and NY $25. MapQuest for "no tolls" becomes a 9.5 hour 450 mile trip. It was designed to generate revenue...scumbags