# Distance between Des Moines, IA (DSM) and Helena, MT (HLN)

Flight distance from Des Moines to Helena (Des Moines International Airport – Helena Regional Airport) is 974 miles / 1568 kilometers / 846 nautical miles. Estimated flight time is 2 hours 20 minutes.

Driving distance from Des Moines (DSM) to Helena (HLN) is 1237 miles / 1990 kilometers and travel time by car is about 20 hours 0 minutes.

## Map of flight path and driving directions from Des Moines to Helena.

Shortest flight path between Des Moines International Airport (DSM) and Helena Regional Airport (HLN).

## How far is Helena from Des Moines?

There are several ways to calculate distances between Des Moines and Helena. Here are two common methods:

Vincenty's formula (applied above)
• 974.061 miles
• 1567.600 kilometers
• 846.436 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
• 971.835 miles
• 1564.017 kilometers
• 844.502 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 Helena Regional Airport
City: Helena, MT
Country: United States
IATA Code: HLN
ICAO Code: KHLN
Coordinates: 46°36′24″N, 111°58′58″W

## Time difference and current local times

The time difference between Des Moines and Helena is 1 hour. Helena is 1 hour behind Des Moines.

CST

MST

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 149 kg (329 pounds).

## Frequent Flyer Miles Calculator

Des Moines (DSM) → Helena (HLN).

Distance:
974
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
974

Round trip?