Nonstop flight route between Great Falls, Montana, United States and Smithton, Tasmania, Australia:
Departure Airport:

Arrival Airport:

Distance from GFA to SIO:
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- About this route
- GFA Airport Information
- SIO Airport Information
- Facts about GFA
- Facts about SIO
- 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 SIO
- List of Nearest Airports to SIO
- Map of Furthest Airports from SIO
- List of Furthest Airports from SIO
About this route:
A direct, nonstop flight between Malmstrom Air Force Base (GFA), Great Falls, Montana, United States and Smithton Airport (SIO), Smithton, Tasmania, Australia would travel a Great Circle distance of 8,783 miles (or 14,135 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 large distance between Malmstrom Air Force Base and Smithton Airport, the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between Malmstrom Air Force Base and Smithton Airport. You'll see that it will travel the same route of the red line on this map!
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: | SIO / YSMI |
Airport Name: | Smithton Airport |
Location: | Smithton, Tasmania, Australia |
GPS Coordinates: | 40°50'6"S by 145°4'59"E |
Operator/Owner: | DIER |
Airport Type: | Public |
Elevation: | 31 feet (9 meters) |
# of Runways: | 2 |
View all routes: | Routes from SIO |
More Information: | SIO Maps & Info |
Facts about Malmstrom Air Force Base (GFA):
- 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.
- At Great Falls, P-39 Airacobras, C-47 Skytrains, B-25 Mitchells, and A-20 Havocs aircraft.
- On 23 December 1959, the Air Force Ballistic Missile Committee approved the selection of Malmstrom AFB to host the first Minuteman ICBM base.
- In 1959 a SAGE data center was established at Malmstrom.
- Malmstrom Air Force Base is a United States Air Force base and census-designated place in Great Falls, Cascade County, Montana, United States.
- In addition to being known as "Malmstrom Air Force Base", another name for GFA is "Malmstrom AFB".
- Following World War II, Great Falls Army Air Base played an important role in US defense during the Cold War era.
- This included one of the greatest technology transfers in the history of the world.
- 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.
- The 801st Radar Squadron was inactivated on 31 December 1969 due to budget reductions.
- Great Falls was reassigned to the Central Air Defense Force at Richards-Gebaur Air Force Base in 1953.
Facts about Smithton Airport (SIO):
- The closest airport to Smithton Airport (SIO) is Burnie Airport (BWT), which is located 36 miles (57 kilometers) ESE of SIO.
- Smithton Airport (SIO) has 2 runways.
- Because of Smithton Airport's relatively low elevation of 31 feet, planes can take off or land at Smithton 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 Smithton Airport (SIO) is Corvo Airport (CVU), which is nearly antipodal to Smithton Airport (meaning Smithton Airport is almost on the exact opposite side of the Earth from Corvo Airport), and is located 12,221 miles (19,667 kilometers) away in Corvo Island, Azores, Portugal.