Nonstop flight route between Greenville, South Carolina, United States and Alton, Illinois, United States:
Departure Airport:

Arrival Airport:

Distance from GMU to ALN:
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- About this route
- GMU Airport Information
- ALN Airport Information
- Facts about GMU
- Facts about ALN
- Map of Nearest Airports to GMU
- List of Nearest Airports to GMU
- Map of Furthest Airports from GMU
- List of Furthest Airports from GMU
- 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 Greenville Downtown Airport (GMU), Greenville, South Carolina, United States and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 509 miles (or 819 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 Greenville Downtown 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: | GMU / KGMU |
Airport Names: |
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Location: | Greenville, South Carolina, United States |
GPS Coordinates: | 34°50'53"N by 82°20'59"W |
Area Served: | Greenville, South Carolina |
Operator/Owner: | Greenville Airport Commission |
Airport Type: | Public |
Elevation: | 1048 feet (319 meters) |
# of Runways: | 2 |
View all routes: | Routes from GMU |
More Information: | GMU 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 Greenville Downtown Airport (GMU):
- Greenville Downtown Airport (GMU) has 2 runways.
- The FAA Southern Region recently selected GMU to receive its General Aviation Airport Safety Award.
- The closest airport to Greenville Downtown Airport (GMU) is Donaldson Center Airport (GDC), which is located only 6 miles (10 kilometers) SSW of GMU.
- The furthest airport from Greenville Downtown Airport (GMU) is Margaret River Airport (MGV), which is located 11,441 miles (18,413 kilometers) away in Margaret River, Western Australia, Australia.
- GMU opened in 1928 and was initially named Greenville Municipal Airport.
- In addition to being known as "Greenville Downtown Airport", another name for GMU is "(Greenville Municipal Airport)".
- In 1954 Charles Lindbergh dedicated the new terminal.
- Located at GMU are many companies that provide aviation services like aircraft rental and flight instruction, aircraft maintenance, helicopter services and flight instruction, aircraft management, fuel service, aircraft sales, air charter and air taxi services.
Facts about St. Louis Regional Airport (ALN):
- West Star Aviation is the largest fixed base operations company at the airport.
- 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.
- The 2,250 acres airfield sits at 544 ft MSL.
- 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.