Nonstop flight route between Diomede, Alaska, United States and Hailey, Idaho, United States:
Departure Airport:

Arrival Airport:

Distance from DIO to SUN:
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- About this route
- DIO Airport Information
- SUN Airport Information
- Facts about DIO
- Facts about SUN
- 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 SUN
- List of Nearest Airports to SUN
- Map of Furthest Airports from SUN
- List of Furthest Airports from SUN
About this route:
A direct, nonstop flight between Diomede Heliport (FAA: DM2) (DIO), Diomede, Alaska, United States and Friedman Memorial Airport (SUN), Hailey, Idaho, United States would travel a Great Circle distance of 2,548 miles (or 4,100 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 Friedman Memorial 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 Friedman Memorial 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: | SUN / KSUN |
Airport Name: | Friedman Memorial Airport |
Location: | Hailey, Idaho, United States |
GPS Coordinates: | 43°30'14"N by 114°17'44"W |
Area Served: | Hailey, Ketchum, Sun Valley |
Operator/Owner: | City of Hailey |
Airport Type: | Public |
Elevation: | 5318 feet (1,621 meters) |
# of Runways: | 1 |
View all routes: | Routes from SUN |
More Information: | SUN Maps & Info |
Facts about Diomede Heliport (FAA: DM2) (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.
- Water for winter use is drawn from a mountain spring, then treated and stored in 434,000-U.S.-gallon storage tanks.
- 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.
- Little Diomede Island is located about 25 miles west from the mainland, in the middle of the Bering Strait.
- 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 closest airport to Diomede Heliport (FAA: DM2) (DIO) is Wales Airport (WAA), which is located 26 miles (42 kilometers) ESE of DIO.
- In the early 1940s, one of the Little Diomede villagers wrote "No airplane comes to Diomede except for some very special reason, during the winter.
- 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.
- According to traveler John Muir, on his visit to Diomede Islands in 1880s they found the natives eager to trade away everything they had.
Facts about Friedman Memorial Airport (SUN):
- The closest airport to Friedman Memorial Airport (SUN) is Challis Airport (CHL), which is located 71 miles (114 kilometers) N of SUN.
- The Friedman family donated much of the land for the airport to the city of Hailey in 1931 and the airport was officially recognized in 1932.
- In the 1970s, the airport was served by Sun Valley Airlines using de Havilland Canada DHC-6 Twin Otter, Convair 440, Piper Navajo and other propeller-driven aircraft.
- Friedman Memorial Airport (SUN) currently has only 1 runway.
- Historically, the airport had scheduled passenger jet service provided in the past on a seasonal basis during the winter ski season by Horizon Air and America West Airlines.
- The furthest airport from Friedman Memorial Airport (SUN) is Pierrefonds Airport (ZSE), which is located 10,794 miles (17,372 kilometers) away in Saint-Pierre, Réunion.
- Because of Friedman Memorial Airport's high elevation of 5,318 feet, planes must typically fly at a faster airspeed in order to takeoff or land at SUN. Combined with a high temperature, this could make SUN a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.