Map of flight path and driving directions from St Louis to Watertown.
Shortest flight path between St. Louis Lambert International Airport (STL) and Watertown Regional Airport (ATY).
How far is Watertown from St Louis?
There are several ways to calculate distances between St Louis and Watertown. Here are two common methods:Vincenty's formula (applied above)
- 550.662 miles
- 886.205 kilometers
- 478.512 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
- 550.455 miles
- 885.872 kilometers
- 478.332 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 St Louis and Watertown.
St Louis, MO
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 106 kg (234 pounds).
Frequent Flyer Miles Calculator
St Louis (STL) → Watertown (ATY).