Air Miles Calculator

Distance between Des Moines, IA (DSM) and Watertown, SD (ATY)

Flight distance from Des Moines to Watertown (Des Moines International Airport – Watertown Regional Airport) is 292 miles / 471 kilometers / 254 nautical miles. Estimated flight time is 1 hour 3 minutes.

Driving distance from Des Moines (DSM) to Watertown (ATY) is 388 miles / 625 kilometers and travel time by car is about 6 hours 23 minutes.

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

Shortest flight path between Des Moines International Airport (DSM) and Watertown Regional Airport (ATY).

How far is Watertown from Des Moines?

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

Vincenty's formula (applied above)
  • 292.361 miles
  • 470.510 kilometers
  • 254.055 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
  • 292.241 miles
  • 470.316 kilometers
  • 253.950 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 Watertown Regional Airport
City: Watertown, SD
Country: United States Flag of United States
IATA Code: ATY
ICAO Code: KATY
Coordinates: 44°54′50″N, 97°9′16″W

Time difference and current local times

There is no time difference between Des Moines and Watertown.

Time Difference

Des Moines, IA

 CST

Watertown, SD

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 68 kg (150 pounds).

Frequent Flyer Miles Calculator

Des Moines (DSM) → Watertown (ATY).

Distance:
292
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
292

Round trip?