Map of flight path and driving directions from Boston to Portsmouth.
Shortest flight path between Logan International Airport (BOS) and Portsmouth International Airport at Pease (PSM).
How far is Portsmouth from Boston?
There are several ways to calculate distances between Boston and Portsmouth. Here are two common methods:Vincenty's formula (applied above)
- 50.120 miles
- 80.660 kilometers
- 43.553 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
- 50.162 miles
- 80.728 kilometers
- 43.590 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
There is no time difference between Boston and Portsmouth.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 32 kg (71 pounds).
Frequent Flyer Miles Calculator
Boston (BOS) → Portsmouth (PSM).