Originally Posted by bltkmt
You can take Amtrak Acela train from DC to Boston (and even Philly in between) pretty easily. No need for a car.
Amtrak fares are very high, and Acela trains are exorbitant. There is now good, safe, and CHEAP bus service between DC, NY, & Boston. It takes a little longer than the train (but not that much longer) and costs a fraction of Amtrak's fares. These are modern, clean, and comfortable buses and many have WiFi. They leave on time. This relatively new quality bus service has been extremely successful. Some of the bus companies such as Megabus go to other cities, including Philly. Among the DC<->NY companies are: BoltBus, Megabus, DC2NY, Vamoose, & Tripper. Some go from Penn Station (NY) to Union Station (DC), others go to a DC suburb, usually Bethesda or Arlington. Fares are generally $30 or less, and luggage is free on most of these lines. I would avoid any remaining Chinatown buses, given their history of accidents and less-than-reliable service.