Nonstop flight route between St. Louis, Missouri, United States and Watertown, South Dakota, United States:
Departure Airport:

Arrival Airport:

Distance from STL to ATY:
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- About this route
- STL Airport Information
- ATY Airport Information
- Facts about STL
- Facts about ATY
- Map of Nearest Airports to STL
- List of Nearest Airports to STL
- Map of Furthest Airports from STL
- List of Furthest Airports from STL
- Map of Nearest Airports to ATY
- List of Nearest Airports to ATY
- Map of Furthest Airports from ATY
- List of Furthest Airports from ATY
About this route:
A direct, nonstop flight between Lambert–St. Louis International Airport (STL), St. Louis, Missouri, United States and Watertown Regional Airport (ATY), Watertown, South Dakota, United States would travel a Great Circle distance of 551 miles (or 886 kilometers).
A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the relatively short distance between Lambert–St. Louis International Airport and Watertown Regional Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | STL / KSTL |
Airport Name: | Lambert–St. Louis International Airport |
Location: | St. Louis, Missouri, United States |
GPS Coordinates: | 38°44'49"N by 90°21'41"W |
Area Served: | Greater St. Louis, Missouri |
Operator/Owner: | City of St. Louis |
Airport Type: | Public |
Elevation: | 605 feet (184 meters) |
# of Runways: | 4 |
View all routes: | Routes from STL |
More Information: | STL Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | ATY / KATY |
Airport Names: |
|
Location: | Watertown, South Dakota, United States |
GPS Coordinates: | 44°54'50"N by 97°9'16"W |
Area Served: | Watertown, South Dakota |
Operator/Owner: | City of Watertown |
Airport Type: | Public |
Elevation: | 1749 feet (533 meters) |
# of Runways: | 2 |
View all routes: | Routes from ATY |
More Information: | ATY Maps & Info |
Facts about Lambert–St. Louis International Airport (STL):
- By September 2002, Lambert's passenger traffic had declined by 16.9% from before the terrorist attacks a year earlier, which was the 8th biggest percentage drop of the major US airports.
- In June 1920, the Aero Club of St.
- Because of Lambert–St. Louis International Airport's relatively low elevation of 605 feet, planes can take off or land at Lambert–St. Louis International Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
- The furthest airport from Lambert–St. Louis International Airport (STL) is Margaret River Airport (MGV), which is located 10,986 miles (17,681 kilometers) away in Margaret River, Western Australia, Australia.
- American Airline's merger closed in April 2001, and the last TWA flight was flown on December 1, 2001.
- By 2013, flights at the airport had continued their steady growth, with 64 non-stop cities served, including 6 international destinations, St.
- Lambert–St. Louis International Airport (STL) has 4 runways.
- The closest airport to Lambert–St. Louis International Airport (STL) is St. Louis Downtown Airport (CPS), which is located only 16 miles (27 kilometers) SE of STL.
Facts about Watertown Regional Airport (ATY):
- In addition to being known as "Watertown Regional Airport", another name for ATY is "Watertown Army Airfield".
- The closest airport to Watertown Regional Airport (ATY) is Brookings Regional Airport (BKX), which is located 45 miles (73 kilometers) SSE of ATY.
- The furthest airport from Watertown Regional Airport (ATY) is Margaret River Airport (MGV), which is located 10,571 miles (17,013 kilometers) away in Margaret River, Western Australia, Australia.
- During World War II the airfield was used by the United States Army Air Forces.
- Watertown Regional Airport (ATY) has 2 runways.