Boston, United States → Washington, United States
342 nautical miles · Direction: southwest
The straight-line distance from Boston to Washington is 634 km (394 miles). Washington lies roughly southwest of Boston; the initial great-circle bearing is 235° (SW). It is a domestic route within United States.
Boston (Northeast, United States) sits at 42.3601°N, 71.0589°W; Washington (Northeast, United States) is at 38.9072°N, 77.0369°W. The initial great-circle bearing is 235° (SW); on a great circle the heading changes along the way.
| Mode | Figure | Basis |
|---|---|---|
| ✈️ Flight | ~1h 18min | Estimate: 800 km/h + 30 min taxi. Not a schedule; total trip time is longer. |
| 🚗 Road | ~824 km · ~10h 18min | Rough estimate: straight line × 1.3 at 80 km/h. Not live routing. |
| 🚆 Rail | No timetable data | Same landmass, so rail may exist — check an operator. |
Rough road-length estimate for Boston to Washington: about 824 km. This is an estimate, not a routed drive — the actual road distance depends on the road network, crossings and the route chosen.
The geographic halfway point of the great-circle path between Boston and Washington lies at approximately 40.6722°N, 74.1253°W — the position that is an equal 317 km from each city along that path. It is a geometric midpoint, not a halfway point by road.
Boston and Washington both use the America/New_York time zone, so there is no normal clock difference between them.
All distances from Boston · All distances from Washington
The straight-line distance from Boston to Washington is approximately 634 km (394 miles, 342 nautical miles).
Washington lies roughly southwest of Boston; the initial great-circle bearing is 235° (SW).
Estimated flight time is about 1h 18min (great-circle distance at 800 km/h plus 30 min for taxi, take-off and landing). It is not an airline schedule; total airport-to-airport trip time is longer.
Rough road-length estimate for Boston to Washington: about 824 km. This is an estimate, not a routed drive — the actual road distance depends on the road network, crossings and the route chosen.
Boston and Washington both use the America/New_York time zone, so there is no normal clock difference between them.
Straight-line distance uses the great-circle (Haversine) method. Flight and road figures, where shown, are estimates rather than schedules or live routing. How SnapDistance calculates distances