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

Arrival Airport:

Distance from GRE to GFA:
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- About this route
- GRE Airport Information
- GFA Airport Information
- Facts about GRE
- Facts about GFA
- Map of Nearest Airports to GRE
- List of Nearest Airports to GRE
- Map of Furthest Airports from GRE
- List of Furthest Airports from GRE
- Map of Nearest Airports to GFA
- List of Nearest Airports to GFA
- Map of Furthest Airports from GFA
- List of Furthest Airports from GFA
About this route:
A direct, nonstop flight between Greenville Airport (GRE), Greenville, Illinois, United States and Malmstrom Air Force Base (GFA), Great Falls, Montana, United States would travel a Great Circle distance of 1,245 miles (or 2,004 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 Greenville Airport and Malmstrom Air Force Base, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | GRE / KGRE |
Airport Name: | Greenville Airport |
Location: | Greenville, Illinois, United States |
GPS Coordinates: | 38°50'9"N by 89°22'45"W |
Area Served: | Greenville, Illinois |
Operator/Owner: | Greenville Airport Authority |
Airport Type: | Public |
Elevation: | 541 feet (165 meters) |
# of Runways: | 2 |
View all routes: | Routes from GRE |
More Information: | GRE Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | GFA / KGFA |
Airport Names: |
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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 |
Facts about Greenville Airport (GRE):
- Because of Greenville Airport's relatively low elevation of 541 feet, planes can take off or land at Greenville 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 Greenville Airport (GRE) is Salem–Leckrone Airport (SLO), which is located 26 miles (42 kilometers) ESE of GRE.
- Greenville Airport (GRE) has 2 runways.
- The furthest airport from Greenville Airport (GRE) is Margaret River Airport (MGV), which is located 11,038 miles (17,764 kilometers) away in Margaret River, Western Australia, Australia.
Facts about Malmstrom Air Force Base (GFA):
- DC-20 was initially under the Great Falls Air Defense Sector, established on 1 March 1959.
- Upon completion of the B-17 training program, in October 1943, Great Falls Army Air Base was transferred to the Air Transport Command and units from Gore Field were transferred to the base.
- The North American Aerospace Defense Command was created in 1957.
- 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.
- 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 1957, under the control of the 801st Aircraft Control and Warning Squadron, the Malmstrom AFB radar station became operational with AN/FPS-20 search and AN/FPS-6 height-finder radars.
- 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.