# 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
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
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.

CDT

EDT

## 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?