Nonstop flight route between Great Falls, Montana, United States and Decatur, Illinois, United States:
Departure Airport:

Arrival Airport:

Distance from GFA to DEC:
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- About this route
- GFA Airport Information
- DEC Airport Information
- Facts about GFA
- Facts about DEC
- Map of Nearest Airports to GFA
- List of Nearest Airports to GFA
- Map of Furthest Airports from GFA
- List of Furthest Airports from GFA
- Map of Nearest Airports to DEC
- List of Nearest Airports to DEC
- Map of Furthest Airports from DEC
- List of Furthest Airports from DEC
About this route:
A direct, nonstop flight between Malmstrom Air Force Base (GFA), Great Falls, Montana, United States and Decatur Airport (DEC), Decatur, Illinois, United States would travel a Great Circle distance of 1,229 miles (or 1,978 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 Malmstrom Air Force Base and Decatur Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | GFA / KGFA |
Airport Names: |
|
Location: | Great Falls, Montana, United States |
GPS Coordinates: | 47°30'16"N by 111°11'13"W |
View all routes: | Routes from GFA |
More Information: | GFA Maps & Info |
Arrival 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 |
Facts about Malmstrom Air Force Base (GFA):
- Malmstrom Air Force Base is a United States Air Force base and census-designated place in Great Falls, Cascade County, Montana, United States.
- The 801st Radar Squadron was inactivated on 31 December 1969 due to budget reductions.
- The furthest airport from Malmstrom Air Force Base (GFA) is Sir Gaëtan Duval Airport (RRG), which is located 10,495 miles (16,891 kilometers) away in Rodrigues Island, Mauritius.
- On 23 December 1959, the Air Force Ballistic Missile Committee approved the selection of Malmstrom AFB to host the first Minuteman ICBM base.
- By 1954, several aircraft control and warning squadrons had been formed at the base.
- Aircraft shipments to the Soviet Union stopped in September 1945, when World War II ended, with approximately 8,000 aircraft having been processed in a 21-month period.
- In 1959 a SAGE data center was established at Malmstrom.
- In addition to being known as "Malmstrom Air Force Base", another name for GFA is "Malmstrom AFB".
- The closest airport to Malmstrom Air Force Base (GFA) is Great Falls International Airport (GTF), which is located only 9 miles (14 kilometers) W of GFA.
Facts about Decatur Airport (DEC):
- Decatur Airport (DEC) has 3 runways.
- The Illinois Army National Guard has an Army Aviation Support Facility at the airport.
- 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 closest airport to Decatur Airport (DEC) is University of Illinois Willard Airport (CMI), which is located 34 miles (55 kilometers) ENE of DEC.