How far is Seattle from Boston?
There are several ways to calculate distances between Boston and Seattle. Here are two common methods:Vincenty's formula (applied above)
- 2495.684 miles
- 4016.415 kilometers
- 2168.690 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.Haversine formula
- 2488.911 miles
- 4005.514 kilometers
- 2162.805 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).
Estimated flight time from Logan International Airport (BOS) to Seattle–Tacoma International Airport (SEA) is 5 hours 13 minutes.
Time difference and current local times
The time difference between Boston and Seattle is 3 hours. Seattle is 3 hours behind Boston.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 279 kg (615 pounds).
Boston to Seattle flight map.
Frequent Flyer Miles Calculator
Boston (BOS) → Seattle (SEA).