Nonstop flight route between Hilton Head Island, South Carolina, United States and Cahokia, Illinois (near St. Louis), United States:
Departure Airport:

Arrival Airport:

Distance from HHH to CPS:
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- About this route
- HHH Airport Information
- CPS Airport Information
- Facts about HHH
- Facts about CPS
- Map of Nearest Airports to HHH
- List of Nearest Airports to HHH
- Map of Furthest Airports from HHH
- List of Furthest Airports from HHH
- 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 Hilton Head Airport (HHH), Hilton Head Island, South Carolina, United States and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 689 miles (or 1,109 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 Hilton Head 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: | HHH / KHXD |
Airport Names: |
|
Location: | Hilton Head Island, South Carolina, United States |
GPS Coordinates: | 32°13'27"N by 80°41'51"W |
Area Served: | Hilton Head Island, South Carolina |
Operator/Owner: | Beaufort County |
Airport Type: | Public |
Elevation: | 19 feet (6 meters) |
# of Runways: | 1 |
View all routes: | Routes from HHH |
More Information: | HHH 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 Hilton Head Airport (HHH):
- Hilton Head Airport (HHH) currently has only 1 runway.
- The closest airport to Hilton Head Airport (HHH) is Beaufort County Airport (BFT), which is located only 13 miles (22 kilometers) NNE of HHH.
- Hilton Head Airport covers an area of 131 acres at an elevation of 19 feet above mean sea level.
- The furthest airport from Hilton Head Airport (HHH) is Margaret River Airport (MGV), which is located 11,516 miles (18,532 kilometers) away in Margaret River, Western Australia, Australia.
- In addition to being known as "Hilton Head Airport", another name for HHH is "HXD".
- Because of Hilton Head Airport's relatively low elevation of 19 feet, planes can take off or land at Hilton Head 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.
Facts about St. Louis Downtown Airport (CPS):
- The airport opened in 1929 as Curtiss-Steinberg Airport.
- 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.
- 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.
- 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.
- 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.