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

Arrival Airport:

Distance from CPS to HPN:
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- About this route
- CPS Airport Information
- HPN Airport Information
- Facts about CPS
- Facts about 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
- Map of Nearest Airports to HPN
- List of Nearest Airports to HPN
- Map of Furthest Airports from HPN
- List of Furthest Airports from HPN
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Westchester County Airport (HPN), White Plains, New York, 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 St. Louis Downtown Airport and Westchester County Airport, the route shown on this map most likely still appears to be a straight line.
Departure 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 |
Arrival 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 |
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.
- 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.
- 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.
- Taken over by the United States Army Air Forces on 1 August 1939 as a basic pilot training airfield.
- St. Louis Downtown Airport (CPS) has 3 runways.
- Historic Hangar #2 houses the Greater Saint Louis Air & Space Museum and the airport is still home to the nation's oldest flight school, Parks College of Engineering and Aviation's Center for Aerospace Sciences, which holds CAA Flight School Certificate #1.
Facts about Westchester County Airport (HPN):
- On November 18, 2010 American Airlines switched service to the airport from American Eagle to AmericanConnection, operated by Chautauqua Airlines, using its smaller ERJ-140 aircraft.
- Westchester County Airport has several fixed-base operators, including Avitat, Signature Flight Support, Landmark, NetJets, Panorama, and Million Air.
- 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 (HPN) has 2 runways.
- In 2013, Delta Air Lines announced that it would start seasonal service to Orlando starting in December.
- 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.
- The airport is presently served by six airlines.
- 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.