Air Miles Calculator

Distance between Des Moines, IA (DSM) and Westerly, RI (WST)

Flight distance from Des Moines to Westerly (Des Moines International Airport – Westerly State Airport) is 1132 miles / 1822 kilometers / 984 nautical miles. Estimated flight time is 2 hours 38 minutes.

Driving distance from Des Moines (DSM) to Westerly (WST) is 1248 miles / 2009 kilometers and travel time by car is about 22 hours 9 minutes.

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

Shortest flight path between Des Moines International Airport (DSM) and Westerly State Airport (WST).

How far is Westerly from Des Moines?

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

Vincenty's formula (applied above)
  • 1132.174 miles
  • 1822.057 kilometers
  • 983.832 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
  • 1129.250 miles
  • 1817.351 kilometers
  • 981.291 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 Westerly State Airport
City: Westerly, RI
Country: United States Flag of United States
IATA Code: WST
ICAO Code: KWST
Coordinates: 41°20′58″N, 71°48′12″W

Time difference and current local times

The time difference between Des Moines and Westerly is 1 hour. Westerly is 1 hour ahead of Des Moines.

Time Difference

Des Moines, IA

 CST

Westerly, RI

 EST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 158 kg (349 pounds).

Frequent Flyer Miles Calculator

Des Moines (DSM) → Westerly (WST).

Distance:
1132
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1132

Round trip?