Nonstop flight route between Smithton, Tasmania, Australia and Middleton Island, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from SIO to MDO:
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- About this route
- SIO Airport Information
- MDO Airport Information
- Facts about SIO
- Facts about MDO
- 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 MDO
- List of Nearest Airports to MDO
- Map of Furthest Airports from MDO
- List of Furthest Airports from MDO
About this route:
A direct, nonstop flight between Smithton Airport (SIO), Smithton, Tasmania, Australia and Middleton Island Airport (MDO), Middleton Island, Alaska, United States would travel a Great Circle distance of 7,947 miles (or 12,789 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 Middleton Island 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 Smithton Airport and Middleton Island Airport. 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: | MDO / PAMD |
Airport Name: | Middleton Island Airport |
Location: | Middleton Island, Alaska, United States |
GPS Coordinates: | 59°26'58"N by 146°18'25"W |
Area Served: | Middleton Island, Alaska |
Airport Type: | Public |
Elevation: | 100 feet (30 meters) |
# of Runways: | 2 |
View all routes: | Routes from MDO |
More Information: | MDO Maps & Info |
Facts about Smithton Airport (SIO):
- 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.
- 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.
Facts about Middleton Island Airport (MDO):
- The closest airport to Middleton Island Airport (MDO) is Boswell Bay Airport (BSW), which is located 67 miles (109 kilometers) N of MDO.
- The furthest airport from Middleton Island Airport (MDO) is Port Elizabeth International Airport (PLZ), which is located 10,639 miles (17,122 kilometers) away in Port Elizabeth, South Africa.
- Because of Middleton Island Airport's relatively low elevation of 100 feet, planes can take off or land at Middleton Island 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.
- Middleton Island Airport (MDO) has 2 runways.