Map of flight path and driving directions from Boise to Portsmouth.
Shortest flight path between Boise Airport (BOI) and Portsmouth International Airport at Pease (PSM).
How far is Portsmouth from Boise?
There are several ways to calculate distances between Boise and Portsmouth. Here are two common methods:Vincenty's formula (applied above)
- 2259.457 miles
- 3636.243 kilometers
- 1963.414 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
- 2253.378 miles
- 3626.460 kilometers
- 1958.132 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 Portsmouth is 2 hours. Portsmouth is 2 hours ahead of Boise.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 247 kg (545 pounds).
Frequent Flyer Miles Calculator
Boise (BOI) → Portsmouth (PSM).