Nonstop flight route between Hilton Head Island, South Carolina, United States and Diomede, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from HHH to DIO:
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- About this route
- HHH Airport Information
- DIO Airport Information
- Facts about HHH
- Facts about DIO
- Map of Nearest Airports to HHH
- List of Nearest Airports to HHH
- Map of Furthest Airports from HHH
- List of Furthest Airports from HHH
- 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 Hilton Head Airport (HHH), Hilton Head Island, South Carolina, United States and Diomede Heliport (FAA: DM2) (DIO), Diomede, Alaska, United States would travel a Great Circle distance of 4,160 miles (or 6,695 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 Hilton Head 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 Hilton Head 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: | HHH / KHXD |
Airport Names: |
|
Location: | Hilton Head Island, South Carolina, United States |
GPS Coordinates: | 32°13'27"N by 80°41'51"W |
Area Served: | Hilton Head Island, South Carolina |
Operator/Owner: | Beaufort County |
Airport Type: | Public |
Elevation: | 19 feet (6 meters) |
# of Runways: | 1 |
View all routes: | Routes from HHH |
More Information: | HHH 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 Hilton Head Airport (HHH):
- In addition to being known as "Hilton Head Airport", another name for HHH is "HXD".
- Hilton Head Airport (HHH) currently has only 1 runway.
- Hilton Head Island has been known for championship golf courses for decades.
- Because of Hilton Head Airport's relatively low elevation of 19 feet, planes can take off or land at Hilton Head 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 Hilton Head Airport (HHH) is Margaret River Airport (MGV), which is located 11,516 miles (18,532 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Hilton Head Airport (HHH) is Beaufort County Airport (BFT), which is located only 13 miles (22 kilometers) NNE of HHH.
Facts about Diomede Heliport (FAA: DM2) (DIO):
- The closest airport to Diomede Heliport (FAA: DM2) (DIO) is Wales Airport (WAA), which is located 26 miles (42 kilometers) ESE of DIO.
- The first non-native to reach the Diomede Islands was a Russian explorer Semyon Dezhnev in 1648.
- The United States purchased Alaska from Russia in 1867 which included the Little Diomede.
- As of the census of 2000, there were 146 people, 43 households, and 31 families residing in the city.
- 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.
- 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.
- Water for winter use is drawn from a mountain spring, then treated and stored in 434,000-U.S.-gallon storage tanks.