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 path
Shortest flight path between Logan International Airport (BOS) and Seattle–Tacoma International Airport (SEA).
Frequent Flyer Miles Calculator
Boston (BOS) → Seattle (SEA).