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

Arrival Airport:

Distance from SIO to DIO:
Share this route:
Jump to:
- About this route
- SIO Airport Information
- DIO Airport Information
- Facts about SIO
- Facts about DIO
- 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 DIO
- List of Nearest Airports to DIO
- Map of Furthest Airports from DIO
- List of Furthest Airports from DIO
About this route:
A direct, nonstop flight between Smithton Airport (SIO), Smithton, Tasmania, Australia and Diomede Heliport (FAA: DM2) (DIO), Diomede, Alaska, United States would travel a Great Circle distance of 7,763 miles (or 12,493 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 Diomede Heliport (FAA: DM2), 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 Diomede Heliport (FAA: DM2). 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: | DIO / |
Airport Name: | Diomede Heliport (FAA: DM2) |
Location: | Diomede, Alaska, United States |
GPS Coordinates: | 65°45'29"N by 168°57'6"W |
Elevation: | 0 feet (0 meters) |
View all routes: | Routes from DIO |
More Information: | DIO Maps & Info |
Facts about Smithton Airport (SIO):
- 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.
- 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.
Facts about Diomede Heliport (FAA: DM2) (DIO):
- An electric system was built on the island in the 1970s and electricity is provided by city-operated Diomede Joint Utilities.
- The location of the city is believed to have been used for at least 3,000 years as a hunting campsite.
- The furthest airport from Diomede Heliport (FAA: DM2) (DIO) is Teniente Rodolfo Marsh Airport (TNM), which is located 10,411 miles (16,755 kilometers) away in Villa Las Estrellas, Antarctica.
- During the centuries, the village on Little Diomede was gradually inhabited as a permanent settlement and the entire island was incorporated into the city of Diomede in 1970.
- The closest airport to Diomede Heliport (FAA: DM2) (DIO) is Wales Airport (WAA), which is located 26 miles (42 kilometers) ESE of DIO.
- Because of Diomede Heliport (FAA: DM2)'s relatively low elevation of 0 feet, planes can take off or land at Diomede Heliport (FAA: DM2) 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.
- According to traveler John Muir, on his visit to Diomede Islands in 1880s they found the natives eager to trade away everything they had.
- On 7 November 2009, it was announced that one inhabitant was infected with H1N1 swine flu.