Calculations with different methods
- 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).
Estimated flight time from O'Hare International Airport (ORD) to Watertown Regional Airport (ATY) is 1 hour 27 minutes.
Time difference and current local times
There is no time difference between Chicago and Watertown.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 92 kg (204 pounds).
Chicago to Watertown flight map.
Frequent Flyer Miles Calculator
Chicago (ORD) → Watertown (ATY).