Nonstop flight route between Independence, Kansas, United States and Alton, Illinois, United States:
Departure Airport:

Arrival Airport:

Distance from IDP to ALN:
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- About this route
- IDP Airport Information
- ALN Airport Information
- Facts about IDP
- Facts about ALN
- Map of Nearest Airports to IDP
- List of Nearest Airports to IDP
- Map of Furthest Airports from IDP
- List of Furthest Airports from IDP
- 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 Independence Municipal Airport (IDP), Independence, Kansas, United States and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 334 miles (or 538 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 Independence Municipal 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: | IDP / KIDP |
Airport Names: |
|
Location: | Independence, Kansas, United States |
GPS Coordinates: | 37°9'29"N by 95°46'41"W |
Area Served: | Independence, Kansas |
Operator/Owner: | City of Independence |
Airport Type: | Public |
Elevation: | 825 feet (251 meters) |
# of Runways: | 2 |
View all routes: | Routes from IDP |
More Information: | IDP 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 Independence Municipal Airport (IDP):
- During World War II the facility was Independence Army Airfield and was used as for United States Army Air Forces Second Air Force pilot training.
- Independence Municipal Airport is six miles southwest of Independence, in Montgomery County, Kansas.
- Because of Independence Municipal Airport's relatively low elevation of 825 feet, planes can take off or land at Independence Municipal 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 furthest airport from Independence Municipal Airport (IDP) is Sir Gaëtan Duval Airport (RRG), which is located 10,698 miles (17,217 kilometers) away in Rodrigues Island, Mauritius.
- In addition to being known as "Independence Municipal Airport", another name for IDP is "(former Independence AAF)".
- The closest airport to Independence Municipal Airport (IDP) is Coffeyville Municipal Airport (CFV), which is located only 12 miles (20 kilometers) ESE of IDP.
- Independence Municipal Airport (IDP) has 2 runways.
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.
- West Star Aviation is the largest fixed base operations company at the airport.
- 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 2,250 acres airfield sits at 544 ft MSL.
- 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 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.
- St. Louis Regional Airport (ALN) has 2 runways.