Nonstop flight route between White Plains, New York, United States and Cahokia, Illinois (near St. Louis), United States:
Departure Airport:

Arrival Airport:

Distance from HPN to CPS:
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- About this route
- HPN Airport Information
- CPS Airport Information
- Facts about HPN
- Facts about CPS
- 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 CPS
- List of Nearest Airports to CPS
- Map of Furthest Airports from CPS
- List of Furthest Airports from CPS
About this route:
A direct, nonstop flight between Westchester County Airport (HPN), White Plains, New York, United States and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 888 miles (or 1,430 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 St. Louis Downtown 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: | CPS / KCPS |
Airport Name: | St. Louis Downtown Airport |
Location: | Cahokia, Illinois (near St. Louis), United States |
GPS Coordinates: | 38°34'14"N by 90°9'21"W |
Area Served: | Greater St. Louis |
Operator/Owner: | Bi-State Development Agency |
Airport Type: | Public |
Elevation: | 413 feet (126 meters) |
# of Runways: | 3 |
View all routes: | Routes from CPS |
More Information: | CPS Maps & Info |
Facts about Westchester County Airport (HPN):
- In 2013, Delta Air Lines announced that it would start seasonal service to Orlando starting in December.
- Westchester County Airport covers 702 acres at an elevation of 439 feet above mean sea level.
- Westchester County Airport (HPN) has 2 runways.
- The airport is presently served by six airlines.
- The closest airport to Westchester County Airport (HPN) is Flushing Airport (closed 1984) (FLU), which is located 21 miles (34 kilometers) SSW of HPN.
- There are two flight schools.
- 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.
- Also, due to its location near a number of residential neighborhoods, Westchester County Airport instituted a Voluntary Restraint from Flying Program, sometimes referred to as a voluntary curfew, which has helped to ease some of the local concern of noise resulting from airport activity.
- 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.
Facts about St. Louis Downtown Airport (CPS):
- The closest airport to St. Louis Downtown Airport (CPS) is Lambert–St. Louis International Airport (STL), which is located only 16 miles (27 kilometers) NW of CPS.
- St. Louis Downtown Airport (CPS) has 3 runways.
- Because of St. Louis Downtown Airport's relatively low elevation of 413 feet, planes can take off or land at St. Louis Downtown 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 opened in 1929 as Curtiss-Steinberg Airport.
- The two survivors out of the airport's original four hangars, Hangar 1 and Hangar 2, are listed on the National Register of Historic Places.
- The furthest airport from St. Louis Downtown Airport (CPS) is Margaret River Airport (MGV), which is located 10,998 miles (17,700 kilometers) away in Margaret River, Western Australia, Australia.