Map of flight path and driving directions from Boise to Seattle.
Shortest flight path between Boise Airport (BOI) and Seattle–Tacoma International Airport (SEA).
How far is Seattle from Boise?
There are several ways to calculate distances between Boise and Seattle. Here are two common methods:Vincenty's formula (applied above)
- 398.910 miles
- 641.984 kilometers
- 346.644 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
- 398.382 miles
- 641.133 kilometers
- 346.184 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).
Time difference and current local times
The time difference between Boise and Seattle is 1 hour. Seattle is 1 hour behind Boise.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 84 kg (185 pounds).
Frequent Flyer Miles Calculator
Boise (BOI) → Seattle (SEA).