Nonstop flight route between Smithton, Tasmania, Australia and Hilo, Hawaii, United States:
Departure Airport:

Arrival Airport:

Distance from SIO to ITO:
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- About this route
- SIO Airport Information
- ITO Airport Information
- Facts about SIO
- Facts about ITO
- 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 ITO
- List of Nearest Airports to ITO
- Map of Furthest Airports from ITO
- List of Furthest Airports from ITO
About this route:
A direct, nonstop flight between Smithton Airport (SIO), Smithton, Tasmania, Australia and Hilo International Airport (ITO), Hilo, Hawaii, United States would travel a Great Circle distance of 5,675 miles (or 9,133 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 Hilo International 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 Hilo International 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: | ITO / PHTO |
Airport Name: | Hilo International Airport |
Location: | Hilo, Hawaii, United States |
GPS Coordinates: | 19°43'13"N by 155°2'53"W |
Operator/Owner: | Hawaiʻi State Department of Transportation |
Airport Type: | Public |
Elevation: | 38 feet (12 meters) |
# of Runways: | 2 |
View all routes: | Routes from ITO |
More Information: | ITO Maps & Info |
Facts about Smithton Airport (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.
- The closest airport to Smithton Airport (SIO) is Burnie Airport (BWT), which is located 36 miles (57 kilometers) ESE of SIO.
Facts about Hilo International Airport (ITO):
- Because of Hilo International Airport's relatively low elevation of 38 feet, planes can take off or land at Hilo International 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.
- Hilo International Airport has two runways.
- Hilo International Airport handled 1,279,342 passengers last year.
- The passenger terminal complex, including commuter facilities, is at the southern edge of Hilo International Airport and is served by an access roadway from Hawaii Belt Road at Kekūanaōʻa Avenue.
- Work began on an interim overseas terminal at General Lyman Field in November 1968.
- Hilo International Airport (ITO) has 2 runways.
- The furthest airport from Hilo International Airport (ITO) is Maun Airport (MUB), which is nearly antipodal to Hilo International Airport (meaning Hilo International Airport is almost on the exact opposite side of the Earth from Maun Airport), and is located 12,336 miles (19,854 kilometers) away in Maun, Botswana.
- The end of the war did not immediately bring about a return to civilian control of General Lyman Field.
- Hilo International Airport's proximity to residential areas has made noise abatement a persistent concern in the airport's development and operations.
- The closest airport to Hilo International Airport (ITO) is Pōhakuloa Training Area (BSF), which is located 44 miles (71 kilometers) W of ITO.
- At the same time, the state's other major airports added overseas service.