Is it better to fly or train?

Trains are more comfortable with legroom, while flights are faster.

How do I get to South Station?

Take the MBTA bus or a ride-share from Watertown to Boston.

Are there direct trains?

Yes, the Northeast Regional runs directly from Boston to DC.

What is the best airport?

Reagan National (DCA) is the closest to the city center.

Do I need a car in DC?

No, the public transit system is highly efficient.

Watertown

Washington

Train Flight

Watertown to Washington

Updated: 28 May 2026

The journey from Watertown to Washington DC spans approximately 450 miles. You can take the Amtrak Northeast Regional from Boston South Station directly to Union Station. Alternatively, fly from Boston Logan International Airport to Ronald Reagan Washington National Airport. Driving via I-95 South takes roughly 8 hours depending on traffic through New York and Baltimore. This route connects the historic heart of New England to the nation's capital.

Total Distance: 725 km driving, 680 km air distance.

Fastest Way

Flight from BOS to DCA, total travel time including security is 3 hours.

Cheapest Way

Amtrak Northeast Regional, often as low as $80 if booked early.

Compare Watertown to Washington Routes

	Train Direct	Flight Direct
Duration	7 hours 30 mins	1 hour 30 mins
Avg Price	$80-$200	$120-$300
Operator	Amtrak Northeast Regional	American Airlines
Route	Boston South Station to Union Station via Providence and NYC.	BOS to DCA.
Tip	Book at least two weeks in advance to secure lower fares.	Use the Blue Line Metro from DCA to reach downtown DC quickly.

Travel Tips

Metro Card
Purchase a SmarTrip card for seamless travel on the DC Metro system.
Walking
Wear comfortable shoes as the National Mall is very large and requires significant walking.
Water
Carry a reusable water bottle to use at the many public fountains near monuments.
Timing
Avoid rush hour traffic on I-95 if driving, specifically near Baltimore and New York.
Booking
Use the Amtrak app to track your train status in real-time.