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

Arrival Airport:

Distance from SYD to DIO:
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- About this route
- SYD Airport Information
- DIO Airport Information
- Facts about SYD
- Facts about 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
- 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 Sydney (Kingsford Smith) Airport (SYD), Mascot (near Sydney), Australia and Diomede Heliport (FAA: DM2) (DIO), Diomede, Alaska, United States 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 Sydney (Kingsford Smith) 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 Sydney (Kingsford Smith) 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: | 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 |
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 Sydney (Kingsford Smith) Airport (SYD):
- 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".
- The limitations of having only two runways that crossed each other had become apparent and governments grappled with Sydney's airport capacity for decades.
- The dedicated Freight Terminal is located north of Terminal 1.
- Sydney Airport's International terminal underwent a $500 million renovation that was completed in mid-2010.
- 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 new terminal was officially opened on 3 May 1970, by Queen Elizabeth II.
- In addition to being known as "Sydney (Kingsford Smith) Airport", another name for SYD is "Kingsford-Smith Airport".
- 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.
- Sydney (Kingsford Smith) Airport (SYD) has 3 runways.
- The Federal Government has bought most of the required land in a proposed site at Badgerys Creek, west of Sydney.
Facts about Diomede Heliport (FAA: DM2) (DIO):
- Funds for improving the water system have been requested both by the city and the school.
- The first square building in the island was a small Catholic church, which was planned by Father Bellarmine Lafortune in 1935 and built by Father Thomas Cunningham during his residency in the island between 1936 and 1947.
- 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.
- 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.
- The Little Diomede island is composed of Cretaceous age granite or quartz monzonite.
- At the beginning of the Cold War in the late 1940s Big Diomede became a Russian military base and all its native residents were removed to mainland Russia.
- The closest airport to Diomede Heliport (FAA: DM2) (DIO) is Wales Airport (WAA), which is located 26 miles (42 kilometers) ESE of DIO.
- While other emergency services are provided by volunteers and a health aide, the fire and rescue service is provided by Diomede Volunteer Fire Department and First Responders.
- 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.