Air Miles Calculator

Distance between Charleston, SC (CHS) and Watertown, SD (ATY)

Flight distance from Charleston to Watertown (Charleston International Airport – Watertown Regional Airport) is 1235 miles / 1988 kilometers / 1073 nautical miles. Estimated flight time is 2 hours 50 minutes.

Driving distance from Charleston (CHS) to Watertown (ATY) is 1562 miles / 2513 kilometers and travel time by car is about 26 hours 49 minutes.

Map of flight path and driving directions from Charleston to Watertown.

Shortest flight path between Charleston International Airport (CHS) and Watertown Regional Airport (ATY).

How far is Watertown from Charleston?

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

Vincenty's formula (applied above)
  • 1235.345 miles
  • 1988.095 kilometers
  • 1073.486 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
  • 1234.601 miles
  • 1986.898 kilometers
  • 1072.839 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 Charleston International Airport
City: Charleston, SC
Country: United States Flag of United States
IATA Code: CHS
ICAO Code: KCHS
Coordinates: 32°53′54″N, 80°2′25″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

The time difference between Charleston and Watertown is 1 hour. Watertown is 1 hour behind Charleston.

Time Difference

Charleston, SC

 EST

Watertown, SD

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 163 kg (359 pounds).

Frequent Flyer Miles Calculator

Charleston (CHS) → Watertown (ATY).

Distance:
1235
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1235

Round trip?