Nonstop flight route between Hilton Head Island, South Carolina, United States and Alton, Illinois, United States:
Departure Airport:

Arrival Airport:

Distance from HHH to ALN:
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- About this route
- HHH Airport Information
- ALN Airport Information
- Facts about HHH
- Facts about ALN
- 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 ALN
- List of Nearest Airports to ALN
- Map of Furthest Airports from ALN
- List of Furthest Airports from ALN
About this route:
A direct, nonstop flight between Hilton Head Airport (HHH), Hilton Head Island, South Carolina, United States and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 698 miles (or 1,123 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 Regional 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: | ALN / KALN |
Airport Name: | St. Louis Regional Airport |
Location: | Alton, Illinois, United States |
GPS Coordinates: | 38°53'25"N by 90°2'45"W |
Area Served: | Alton, Illinois |
Operator/Owner: | St. Louis Regional |
Airport Type: | Public |
Elevation: | 544 feet (166 meters) |
# of Runways: | 2 |
View all routes: | Routes from ALN |
More Information: | ALN Maps & Info |
Facts about Hilton Head Airport (HHH):
- The closest airport to Hilton Head Airport (HHH) is Beaufort County Airport (BFT), which is located only 13 miles (22 kilometers) NNE of HHH.
- 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.
- Hilton Head Airport (HHH) currently has only 1 runway.
- Hilton Head Island has been known for championship golf courses for decades.
- Hilton Head Airport is a public use airport located on Hilton Head Island, in Beaufort County, South Carolina, United States.
- 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".
Facts about St. Louis Regional Airport (ALN):
- Because of St. Louis Regional Airport's relatively low elevation of 544 feet, planes can take off or land at St. Louis Regional 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 Regional Airport (ALN) has 2 runways.
- The furthest airport from St. Louis Regional Airport (ALN) is Margaret River Airport (MGV), which is located 11,002 miles (17,706 kilometers) away in Margaret River, Western Australia, Australia.
- Civic Memorial Airport opened in 1946 and received its current name in 1984.
- Its operations are paid for by an airport taxation district created in 1946, which collects taxes from property owners in the Madison County townships of Alton, Wood River, Foster and Fort Russell.
- The closest airport to St. Louis Regional Airport (ALN) is Lambert–St. Louis International Airport (STL), which is located only 20 miles (32 kilometers) WSW of ALN.