Nonstop flight route between Alton, Illinois, United States and Winston-Salem, North Carolina, United States:
Departure Airport:

Arrival Airport:

Distance from ALN to INT:
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- About this route
- ALN Airport Information
- INT Airport Information
- Facts about ALN
- Facts about INT
- Map of Nearest Airports to ALN
- List of Nearest Airports to ALN
- Map of Furthest Airports from ALN
- List of Furthest Airports from ALN
- Map of Nearest Airports to INT
- List of Nearest Airports to INT
- Map of Furthest Airports from INT
- List of Furthest Airports from INT
About this route:
A direct, nonstop flight between St. Louis Regional Airport (ALN), Alton, Illinois, United States and Smith Reynolds Airport (INT), Winston-Salem, North Carolina, United States would travel a Great Circle distance of 571 miles (or 919 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 Regional Airport and Smith Reynolds Airport, the route shown on this map most likely still appears to be a straight line.
Departure 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 |
Arrival Airport Information:
IATA / ICAO Codes: | INT / KINT |
Airport Name: | Smith Reynolds Airport |
Location: | Winston-Salem, North Carolina, United States |
GPS Coordinates: | 36°8'0"N by 80°13'18"W |
Area Served: | Greensboro & Winston-Salem |
Operator/Owner: | Airport Commission of Forsyth County |
Airport Type: | Public |
Elevation: | 969 feet (295 meters) |
# of Runways: | 2 |
View all routes: | Routes from INT |
More Information: | INT Maps & Info |
Facts about St. Louis Regional Airport (ALN):
- 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.
- The 2,250 acres airfield sits at 544 ft MSL.
- 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.
- Civic Memorial Airport opened in 1946 and received its current name in 1984.
- 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.
Facts about Smith Reynolds Airport (INT):
- Emergency Services has a wide range of meanings.
- In 1933, the Civil Works Administration, a program developed by The New Deal, began extending each runway by 500 feet, lining the main hangar floors with concrete and relocating the field lighting system.
- The furthest airport from Smith Reynolds Airport (INT) is Margaret River Airport (MGV), which is located 11,558 miles (18,600 kilometers) away in Margaret River, Western Australia, Australia.
- From 1942 until 1945, Smith Reynolds Airport served as a training base for military pilots in addition to its commercial and private airline services.
- A portion of land positioned off Walkertown Avenue was located and determined to be the perfect site for a new airport.
- Because of Smith Reynolds Airport's relatively low elevation of 969 feet, planes can take off or land at Smith Reynolds 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 closest airport to Smith Reynolds Airport (INT) is Piedmont Triad International Airport (GSO), which is located only 16 miles (26 kilometers) E of INT.
- The Smith Reynolds Airport is home to the Winston Salem Composite Squadron of Civil Air Patrol.
- Smith Reynolds Airport (INT) has 2 runways.