Nonstop flight route between Smithton, Tasmania, Australia and Sault Ste. Marie, Michigan, United States:
Departure Airport:

Arrival Airport:

Distance from SIO to INR:
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- About this route
- SIO Airport Information
- INR Airport Information
- Facts about SIO
- Facts about INR
- Map of Nearest Airports to SIO
- List of Nearest Airports to SIO
- Map of Furthest Airports from SIO
- List of Furthest Airports from SIO
- Map of Nearest Airports to INR
- List of Nearest Airports to INR
- Map of Furthest Airports from INR
- List of Furthest Airports from INR
About this route:
A direct, nonstop flight between Smithton Airport (SIO), Smithton, Tasmania, Australia and Kincheloe Air Force Base (INR), Sault Ste. Marie, Michigan, United States would travel a Great Circle distance of 9,968 miles (or 16,042 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 Smithton Airport and Kincheloe Air Force Base, 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 Smithton Airport and Kincheloe Air Force Base. You'll see that it will travel the same route of the red line on this map!
Departure 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 |
Arrival Airport Information:
IATA / ICAO Codes: | INR / |
Airport Name: | Kincheloe Air Force Base |
Location: | Sault Ste. Marie, Michigan, United States |
GPS Coordinates: | 46°15'2"N by 84°28'20"W |
View all routes: | Routes from INR |
More Information: | INR Maps & Info |
Facts about Smithton Airport (SIO):
- 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.
- Smithton Airport (SIO) has 2 runways.
- The closest airport to Smithton Airport (SIO) is Burnie Airport (BWT), which is located 36 miles (57 kilometers) ESE of SIO.
Facts about Kincheloe Air Force Base (INR):
- With the outbreak of the Cold War in 1948 and active combat in the Korean War in June, 1950, the United States began building up its defenses.
- As a result of the phase down, ADC moved the 438th Fighter Interceptor Squadron to Griffiss AFB, New York.
- The furthest airport from Kincheloe Air Force Base (INR) is Margaret River Airport (MGV), which is located 11,103 miles (17,869 kilometers) away in Margaret River, Western Australia, Australia.
- The importance of Kincheloe AFB to ADC was evident in 1960 with some major changes.
- The closest airport to Kincheloe Air Force Base (INR) is Chippewa County International Airport (CIU), which is located only 0 mile (0 kilometer) N of INR.
- The 4239th Strategic Wing was inactivated as the 449th Bombardment Wing was activated on 15 Nov 1962 and organized on 1 February 1963, assigned to SAC's Second Air Force, 40th Air Division.
- Kinross was considered a vital Air Defense Command base, an alert-status military base equipped with interceptors ready 24/7 to respond to unknown aircraft picked up by Ground Control Radar stations in the Great Lakes region.
- On 16 February 1953, the first operational ADC unit, the 534th Air Defense Group was activated at Kinross AFB.