Air Miles Calculator

Distance between Des Moines, IA (DSM) and Portsmouth, NH (PSM)

Flight distance from Des Moines to Portsmouth (Des Moines International Airport – Portsmouth International Airport at Pease) is 1171 miles / 1885 kilometers / 1018 nautical miles. Estimated flight time is 2 hours 43 minutes.

Driving distance from Des Moines (DSM) to Portsmouth (PSM) is 1366 miles / 2198 kilometers and travel time by car is about 24 hours 15 minutes.

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).

Airport information


A Des Moines International Airport
City: Des Moines, IA
Country: United States Flag of United States
IATA Code: DSM
ICAO Code: KDSM
Coordinates: 41°32′2″N, 93°39′47″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 Des Moines and Portsmouth is 1 hour. Portsmouth is 1 hour ahead of Des Moines.

Time Difference

Des Moines, IA

 CST

Portsmouth, NH

 EST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 160 kg (353 pounds).

Frequent Flyer Miles Calculator

Des Moines (DSM) → Portsmouth (PSM).

Distance:
1171
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1171

Round trip?