Nonstop flight route between Decatur, Illinois, United States and Springfield, Illinois, United States:
Departure Airport:

Arrival Airport:

Distance from DEC to SPI:
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- About this route
- DEC Airport Information
- SPI Airport Information
- Facts about DEC
- Facts about SPI
- Map of Nearest Airports to DEC
- List of Nearest Airports to DEC
- Map of Furthest Airports from DEC
- List of Furthest Airports from DEC
- Map of Nearest Airports to SPI
- List of Nearest Airports to SPI
- Map of Furthest Airports from SPI
- List of Furthest Airports from SPI
About this route:
A direct, nonstop flight between Decatur Airport (DEC), Decatur, Illinois, United States and Abraham Lincoln Capital Airport (SPI), Springfield, Illinois, United States would travel a Great Circle distance of 43 miles (or 69 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 Decatur Airport and Abraham Lincoln Capital Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | DEC / KDEC |
Airport Name: | Decatur Airport |
Location: | Decatur, Illinois, United States |
GPS Coordinates: | 39°50'3"N by 88°51'56"W |
Area Served: | Decatur, Illinois |
Operator/Owner: | Decatur Park District |
Airport Type: | Public |
Elevation: | 682 feet (208 meters) |
# of Runways: | 3 |
View all routes: | Routes from DEC |
More Information: | DEC Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | SPI / KSPI |
Airport Name: | Abraham Lincoln Capital Airport |
Location: | Springfield, Illinois, United States |
GPS Coordinates: | 39°50'39"N by 89°40'41"W |
Area Served: | Springfield, Illinois |
Operator/Owner: | Springfield Airport Authority |
Airport Type: | Public |
Elevation: | 598 feet (182 meters) |
# of Runways: | 3 |
View all routes: | Routes from SPI |
More Information: | SPI Maps & Info |
Facts about Decatur Airport (DEC):
- The closest airport to Decatur Airport (DEC) is University of Illinois Willard Airport (CMI), which is located 34 miles (55 kilometers) ENE of DEC.
- Decatur Airport covers 2,100 acres at an elevation of 682 feet.
- The furthest airport from Decatur Airport (DEC) is Margaret River Airport (MGV), which is located 11,056 miles (17,793 kilometers) away in Margaret River, Western Australia, Australia.
- Because of Decatur Airport's relatively low elevation of 682 feet, planes can take off or land at Decatur 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 Illinois Army National Guard has an Army Aviation Support Facility at the airport.
- Decatur Airport (DEC) has 3 runways.
Facts about Abraham Lincoln Capital Airport (SPI):
- Because of Abraham Lincoln Capital Airport's relatively low elevation of 598 feet, planes can take off or land at Abraham Lincoln Capital 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 Abraham Lincoln Capital Airport (SPI) is Margaret River Airport (MGV), which is located 11,013 miles (17,724 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Abraham Lincoln Capital Airport (SPI) is Decatur Airport (DEC), which is located 43 miles (69 kilometers) E of SPI.
- Abraham Lincoln Capital Airport (SPI) has 3 runways.
- Abraham Lincoln Capital Airport is a civil-military public airport in Sangamon County, Illinois.
- The airport has a Subway, a gift shop, an automated teller machine, TV and a lounge.
- The 183 FW remains in place at Capital Airport AGS minus a flying mission while the U.S.