# 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
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
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.

EDT

CDT

## 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?