Nonstop flight route between White Plains, New York, United States and St. Louis, Missouri, United States:
Departure Airport:

Arrival Airport:

Distance from HPN to STL:
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- About this route
- HPN Airport Information
- STL Airport Information
- Facts about HPN
- Facts about STL
- Map of Nearest Airports to HPN
- List of Nearest Airports to HPN
- Map of Furthest Airports from HPN
- List of Furthest Airports from HPN
- Map of Nearest Airports to STL
- List of Nearest Airports to STL
- Map of Furthest Airports from STL
- List of Furthest Airports from STL
About this route:
A direct, nonstop flight between Westchester County Airport (HPN), White Plains, New York, United States and Lambert–St. Louis International Airport (STL), St. Louis, Missouri, United States would travel a Great Circle distance of 896 miles (or 1,441 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 Westchester County Airport and Lambert–St. Louis International Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | HPN / KHPN |
Airport Name: | Westchester County Airport |
Location: | White Plains, New York, United States |
GPS Coordinates: | 41°4'0"N by 73°42'26"W |
Area Served: | Westchester County, New York, Fairfield County, Connecticut |
Operator/Owner: | County of Westchester |
Airport Type: | Public-use |
Elevation: | 439 feet (134 meters) |
# of Runways: | 2 |
View all routes: | Routes from HPN |
More Information: | HPN Maps & Info |
Arrival 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 |
Facts about Westchester County Airport (HPN):
- The closest airport to Westchester County Airport (HPN) is Flushing Airport (closed 1984) (FLU), which is located 21 miles (34 kilometers) SSW of HPN.
- Westchester County Airport was built during World War II in 1942 as a home to an Air National Guard unit to protect New York City and Rye Lake, part of the city's water supply system.
- Because of Westchester County Airport's relatively low elevation of 439 feet, planes can take off or land at Westchester County 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 airport is presently served by six airlines.
- The airport's environmental management practices are monitored through the AEMS, an ISO 14001 certified Airport Environmental Management System.
- Westchester County Airport (HPN) has 2 runways.
- The furthest airport from Westchester County Airport (HPN) is Margaret River Airport (MGV), which is located 11,747 miles (18,906 kilometers) away in Margaret River, Western Australia, Australia.
- Westchester County Airport is also the current home of the New York Wing of the United States Civil Air Patrol, as well as the Southeastern Group of the New York Wing.
Facts about Lambert–St. Louis International Airport (STL):
- In 1982, Trans World Airlines moved its hub from Kansas City International Airport.
- TWA's hub grew again in 1986 when the airline bought Ozark Airlines, which had its hub at Lambert's Concourse D.
- Lambert–St. Louis International Airport (STL) has 4 runways.
- During 2008, Lambert's position as an American Airlines hub faced further pressure due to increased fuel costs and softened demand because of a depressed economy.
- During the war, the airport became a manufacturing base for McDonnell Aircraft and Curtiss-Wright.
- 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 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.
- 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.