Air Miles Calculator

Distance between Boise, ID (BOI) and Portsmouth, NH (PSM)

Flight distance from Boise to Portsmouth (Boise Airport – Portsmouth International Airport at Pease) is 2259 miles / 3636 kilometers / 1963 nautical miles. Estimated flight time is 4 hours 46 minutes.

Driving distance from Boise (BOI) to Portsmouth (PSM) is 2719 miles / 4376 kilometers and travel time by car is about 45 hours 22 minutes.

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).

Airport information


A Boise Airport
City: Boise, ID
Country: United States Flag of United States
IATA Code: BOI
ICAO Code: KBOI
Coordinates: 43°33′51″N, 116°13′22″W

B Portsmouth International Airport at Pease
City: Portsmouth, NH
Country: United States Flag of United States
IATA Code: PSM
ICAO Code: KPSM
Coordinates: 43°4′40″N, 70°49′23″W

Time difference and current local times

The time difference between Boise and Portsmouth is 2 hours. Portsmouth is 2 hours ahead of Boise.

Time Difference

Boise, ID

 MST

Portsmouth, NH

 EST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 247 kg (545 pounds).

Frequent Flyer Miles Calculator

Boise (BOI) → Portsmouth (PSM).

Distance:
2259
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
2259

Round trip?