Nonstop flight route between Chesterfield, Missouri, United States and Alton, Illinois, United States:
Departure Airport:

Arrival Airport:

Distance from SUS to ALN:
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- About this route
- SUS Airport Information
- ALN Airport Information
- Facts about SUS
- Facts about ALN
- Map of Nearest Airports to SUS
- List of Nearest Airports to SUS
- Map of Furthest Airports from SUS
- List of Furthest Airports from SUS
- 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 Spirit of St. Louis Airport (SUS), Chesterfield, Missouri, United States and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 36 miles (or 58 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 Spirit of St. Louis 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: | SUS / KSUS |
Airport Name: | Spirit of St. Louis Airport |
Location: | Chesterfield, Missouri, United States |
GPS Coordinates: | 38°39'43"N by 90°39'6"W |
Operator/Owner: | St. Louis County |
Airport Type: | Public |
Elevation: | 463 feet (141 meters) |
# of Runways: | 2 |
View all routes: | Routes from SUS |
More Information: | SUS 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 Spirit of St. Louis Airport (SUS):
- The closest airport to Spirit of St. Louis Airport (SUS) is Lambert–St. Louis International Airport (STL), which is located only 17 miles (27 kilometers) ENE of SUS.
- Because of Spirit of St. Louis Airport's relatively low elevation of 463 feet, planes can take off or land at Spirit of St. Louis 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.
- In 2007, the airport finished a multi-million dollar expansion project to add a parallel taxiway to the north of 26R/8L.
- The furthest airport from Spirit of St. Louis Airport (SUS) is Margaret River Airport (MGV), which is located 10,971 miles (17,656 kilometers) away in Margaret River, Western Australia, Australia.
- Spirit of St. Louis Airport (SUS) has 2 runways.
Facts about St. Louis Regional Airport (ALN):
- 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.
- Today a fair amount of air traffic and the Direct TV blimp comes for Cardinals playoffs, as Lambert's airport cannot take the blimp.
- 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.
- 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.
- 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.
- St. Louis Regional Airport (ALN) has 2 runways.