Nonstop flight route between Alton, Illinois, United States and Caldwell, New Jersey, United States:
Departure Airport:

Arrival Airport:

Distance from ALN to CDW:
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- About this route
- ALN Airport Information
- CDW Airport Information
- Facts about ALN
- Facts about CDW
- 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 CDW
- List of Nearest Airports to CDW
- Map of Furthest Airports from CDW
- List of Furthest Airports from CDW
About this route:
A direct, nonstop flight between St. Louis Regional Airport (ALN), Alton, Illinois, United States and Essex County Airport (CDW), Caldwell, New Jersey, United States would travel a Great Circle distance of 846 miles (or 1,361 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 Essex County 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: | CDW / KCDW |
Airport Name: | Essex County Airport |
Location: | Caldwell, New Jersey, United States |
GPS Coordinates: | 40°52'31"N by 74°16'53"W |
Area Served: | Caldwell, New Jersey |
Operator/Owner: | Essex County Improvement Authority |
Airport Type: | Public |
Elevation: | 172 feet (52 meters) |
# of Runways: | 2 |
View all routes: | Routes from CDW |
More Information: | CDW Maps & Info |
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.
- St. Louis Regional Airport (ALN) has 2 runways.
- 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.
- 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.
Facts about Essex County Airport (CDW):
- In April 1929 Essex Airport Corporation was formed by Walter Marvin and six other individuals.
- The furthest airport from Essex County Airport (CDW) is Margaret River Airport (MGV), which is located 11,734 miles (18,884 kilometers) away in Margaret River, Western Australia, Australia.
- Because of Essex County Airport's relatively low elevation of 172 feet, planes can take off or land at Essex County 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.
- Essex County Airport (CDW) has 2 runways.
- The closest airport to Essex County Airport (CDW) is Morristown Municipal Airport (MMU), which is located only 9 miles (14 kilometers) SW of CDW.
- The weather station reports are commonly identified as "Caldwell".
- The airport gained national attention when John F.