The flight distance from Watertown Regional Airport to Chicago, Illinois is:

523 miles / 841 km

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Flight path from ATY to Chicago, IL

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Distance from ATY to Chicago, IL

The total distance from ATY to Chicago, IL is 523 miles.

This is equivalent to 841 kilometers or 454 nautical miles.

Your trip begins at Watertown Regional Airport in Watertown, South Dakota.
It ends in Chicago, Illinois.

Your flight direction from ATY to Chicago, IL is East (110 degrees from North).

The distance calculator helps you figure out how far it is to fly from ATY to Chicago, IL. It does this by computing the straight line flying distance ("as the crow flies"). It uses the great circle formula to compute the total travel mileage.

Watertown Regional Airport

IATA: ATY
ICAO: KATY
FAA: ATY
City: Watertown
State: South Dakota
Zip code: 57201
Country: United States
Category: airports

Chicago, Illinois

City: Chicago
State: Illinois
Country: United States
Category: cities

Flight distance calculator

Travelmath provides an online flight distance calculator to get the distance between cities. You can also compare all types of locations including airports, cities, states, countries, or zip codes to find the distance between any two points. The database uses the latitude and longitude of each location to calculate distance using the great circle distance formula. The calculation is done using the Vincenty algorithm and the WGS84 ellipsoid model of the Earth, which is the same one used by most GPS receivers. This gives you the flying distance "as the crow flies." Find your flight distances quickly to estimate the number of frequent flyer miles you'll accumulate. Or ask how far is it between cities to solve your homework problems. You can lookup U.S. cities, or expand your search to get the world distance for international trips.