Map of flight path and driving directions from Des Moines to Portsmouth.
Shortest flight path between Des Moines International Airport (DSM) and Portsmouth International Airport at Pease (PSM).
How far is Portsmouth from Des Moines?
There are several ways to calculate distances between Des Moines and Portsmouth. Here are two common methods:Vincenty's formula (applied above)
- 1171.364 miles
- 1885.127 kilometers
- 1017.887 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
- 1168.315 miles
- 1880.221 kilometers
- 1015.238 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 Des Moines and Portsmouth is 1 hour. Portsmouth is 1 hour ahead of Des Moines.
Des Moines, IA
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 160 kg (353 pounds).
Frequent Flyer Miles Calculator
Des Moines (DSM) → Portsmouth (PSM).