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).
Time difference and current local times
There is no time difference between Chicago and Watertown.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 100 kg (220 pounds).
Frequent Flyer Miles Calculator
Chicago (ORD) → Watertown (ATY).