Boston to Washington is about 480 miles (773 km) by road and 394 miles in a straight line. The drive takes around 8 hr 8 min and a nonstop flight is about 1 hr 13 min. The distance is the same in reverse, from Washington to Boston.
What This Distance Means for Your Trip
This is comfortably flying territory. A nonstop flight is roughly 1 hr 13 min in the air, and even allowing for airport time the realistic door-to-door journey is around 4 hr 13 min — well under the 8 hr 8 min the 480-mile drive takes. Most travelers fly this route; the drive is really a multi-day road trip for when the journey itself is the appeal.
Want the full side-by-side on time, cost and hassle? See our drive-or-fly breakdown for Boston to Washington.
How we calculate these figures
Straight-line distance uses the great-circle (haversine) formula between each city's centre coordinates. Road distance applies a circuity factor of roughly 1.2–1.4× to reflect that roads are not straight. Driving time assumes typical blended speeds for a trip of this length, and flight time is the great-circle distance at about 875 km/h cruise plus around 30 minutes for taxi, climb, descent and approach. The door-to-door air estimate adds about three hours for airport access, check-in, security and boarding. Real figures vary with your exact route, traffic, weather, aircraft and connections.
Boston to Washington, D.C. runs the length of the Northeast Corridor — the busiest, most densely populated travel corridor in the United States. Connecting two of America's most historic cities and passing through New York, Philadelphia, and Baltimore, it's a route with more transport options than almost any other in the country.
Unusually for the US, the train is a genuinely excellent option here: Amtrak's Acela and Northeast Regional services link the city centres directly, often beating both driving and flying door-to-door once you account for traffic and airport time.
Stops Along the Way
About 4 hours from Boston — the major waypoint, and a tempting stopover.
Historic Philadelphia, with its revolutionary landmarks, sits roughly two-thirds of the way.
The Inner Harbor city, close to D.C. and a worthwhile final stop before the capital.
The route threads through the megalopolis — efficient but prone to heavy traffic.
Meeting someone from Washington? Find the exact halfway point between Boston and Washington so neither of you drives the whole way — or plan evenly-spaced rest and fuel stops along the route.
Tips for This Trip
Consider the train
Amtrak connects Boston and D.C. city-centre to city-centre, often more relaxing and competitive than driving or flying once traffic and airport time are factored in.
Driving means heavy traffic
The I-95 corridor through New York and the cities is among the most congested in the US. Budget extra time and avoid rush hours.
Flying isn't always faster
Short flight times are offset by airport procedures at both ends. For this corridor, the train is frequently the smarter choice.
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Frequently Asked Questions
Washington, D.C. is about 400 miles (645 km) from Boston in a straight line, and roughly 440 miles (710 km) by road via Interstate 95, passing through New York, Philadelphia, and Baltimore.