Nonstop flight route between Diomede, Alaska, United States and Mascot (near Sydney), Australia:
Departure Airport:

Arrival Airport:

Distance from DIO to SYD:
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- About this route
- DIO Airport Information
- SYD Airport Information
- Facts about DIO
- Facts about SYD
- Map of Nearest Airports to DIO
- List of Nearest Airports to DIO
- Map of Furthest Airports from DIO
- List of Furthest Airports from DIO
- Map of Nearest Airports to SYD
- List of Nearest Airports to SYD
- Map of Furthest Airports from SYD
- List of Furthest Airports from SYD
About this route:
A direct, nonstop flight between Diomede Heliport (FAA: DM2) (DIO), Diomede, Alaska, United States and Sydney (Kingsford Smith) Airport (SYD), Mascot (near Sydney), Australia would travel a Great Circle distance of 7,210 miles (or 11,603 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 Diomede Heliport (FAA: DM2) and Sydney (Kingsford Smith) 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 Diomede Heliport (FAA: DM2) and Sydney (Kingsford Smith) Airport. You'll see that it will travel the same route of the red line on this map!
Departure 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 |
Arrival Airport Information:
IATA / ICAO Codes: | SYD / YSSY |
Airport Names: |
|
Location: | Mascot (near Sydney), Australia |
GPS Coordinates: | 33°56'45"S by 151°10'37"E |
Area Served: | Sydney |
Operator/Owner: | Sydney Airport Corporation Limited |
Airport Type: | Public |
Elevation: | 21 feet (6 meters) |
# of Runways: | 3 |
View all routes: | Routes from SYD |
More Information: | SYD Maps & Info |
Facts about Diomede Heliport (FAA: DM2) (DIO):
- During the Nome gold rush at the turn of the 19th century, Diomede villagers traveled to Nome along with the gold seekers, even though Nome was not a native village.
- According to the United States Census Bureau, the village has a total area of 2.84 square miles, all of it land.
- 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.
- There were 43 households out of which 37.2% had children under the age of 18 living with them, 20.9% were married couples living together, 32.6% had a female householder with no husband present, and 27.9% were non-families.
- Today there are about 30 buildings on the island, including the residential housing that was mainly built in the 1970s and 1980s.
- An electric system was built on the island in the 1970s and electricity is provided by city-operated Diomede Joint Utilities.
- The closest airport to Diomede Heliport (FAA: DM2) (DIO) is Wales Airport (WAA), which is located 26 miles (42 kilometers) ESE of DIO.
- The island's only school, and likely the most isolated school in the United States, the Diomede School has grades from Pre-K through 12 and approximately 40 students and 5 teachers.
- 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.
Facts about Sydney (Kingsford Smith) Airport (SYD):
- In addition to the curfew, Sydney Airport also has a cap of 80 aircraft movements per hour which cannot be exceeded, leading to increased delays during peak hours.
- The closest airport to Sydney (Kingsford Smith) Airport (SYD) is Bankstown Airport (BWU), which is located only 11 miles (18 kilometers) W of SYD.
- The local, state and federal governments have investigated the viability of building a second major airport in Sydney since the 1940s.
- In addition to being known as "Sydney (Kingsford Smith) Airport", another name for SYD is "Kingsford-Smith Airport".
- Sydney Airport is an international airport located 8 km south of the city centre, in the suburb of Mascot in Sydney.
- The furthest airport from Sydney (Kingsford Smith) Airport (SYD) is Santa Maria Airport (SMA), which is nearly antipodal to Sydney (Kingsford Smith) Airport (meaning Sydney (Kingsford Smith) Airport is almost on the exact opposite side of the Earth from Santa Maria Airport), and is located 12,144 miles (19,543 kilometers) away in Santa Maria, Portugal.
- Because of Sydney (Kingsford Smith) Airport's relatively low elevation of 21 feet, planes can take off or land at Sydney (Kingsford Smith) 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.
- In September 2012, Sydney Airport CEO Kerrie Mather announced the airport had abandoned the proposal to create alliance-based terminals in favour of terminals "based around specific airline requirements and transfer flows".
- Sydney (Kingsford Smith) Airport (SYD) has 3 runways.
- In 1995 the Australian Parliament passed the Sydney Airport Curfew Act 1995, which limits the operating hours of the airport.