Boston, United States → Seattle, United States
2,160 nautical miles · Direction: northwest
The straight-line distance from Boston to Seattle is 4,000 km (2,486 miles). Seattle lies roughly west-northwest of Boston; the initial great-circle bearing is 296° (WNW). It is a domestic route within United States.
Boston (Northeast, United States) sits at 42.3601°N, 71.0589°W; Seattle (Pacific Northwest, United States) is at 47.6062°N, 122.3321°W. The initial great-circle bearing is 296° (WNW); on a great circle the heading changes along the way.
| Mode | Figure | Basis |
|---|---|---|
| ✈️ Flight | ~5h 30min | Estimate: 800 km/h + 30 min taxi. Not a schedule; total trip time is longer. |
| 🚗 Road | No estimate | Rough road-length estimate |
Rough road-length estimate for Boston to Seattle: about 5,200 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 Seattle lies at approximately 47.9399°N, 95.4367°W — the position that is an equal 2,000 km from each city along that path. It is a geometric midpoint, not a halfway point by road.
Seattle (America/Los_Angeles) is 3 hours behind Boston (America/New_York) all year; daylight saving does not change the gap.
All distances from Boston · All distances from Seattle
The straight-line distance from Boston to Seattle is approximately 4,000 km (2,486 miles, 2,160 nautical miles).
Seattle lies roughly west-northwest of Boston; the initial great-circle bearing is 296° (WNW).
Estimated flight time is about 5h 30min (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 Seattle: about 5,200 km. This is an estimate, not a routed drive — the actual road distance depends on the road network, crossings and the route chosen.
Seattle (America/Los_Angeles) is 3 hours behind Boston (America/New_York) all year; daylight saving does not change the gap.
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