Air Miles Calculator

Distance between Chicago, IL (ORD) and Watertown, SD (ATY)

Flight distance from Chicago to Watertown (Chicago O'Hare International Airport – Watertown Regional Airport) is 507 miles / 816 kilometers / 441 nautical miles. Estimated flight time is 1 hour 27 minutes.

Driving distance from Chicago (ORD) to Watertown (ATY) is 661 miles / 1063 kilometers and travel time by car is about 11 hours 7 minutes.

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

Shortest flight path between Chicago O'Hare International Airport (ORD) and Watertown Regional Airport (ATY).

How far is Watertown from Chicago?

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

Vincenty's formula (applied above)
  • 507.085 miles
  • 816.074 kilometers
  • 440.645 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
  • 506.003 miles
  • 814.333 kilometers
  • 439.705 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 Chicago O'Hare International Airport
City: Chicago, IL
Country: United States Flag of United States
IATA Code: ORD
ICAO Code: KORD
Coordinates: 41°58′42″N, 87°54′17″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 Chicago and Watertown.

Time Difference

Chicago, IL

 CST

Watertown, SD

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 100 kg (220 pounds).

Frequent Flyer Miles Calculator

Chicago (ORD) → Watertown (ATY).

Distance:
507
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
507

Round trip?