Nonstop flight route between Sidney, Montana, United States and Wahiawa, Hawaii, United States:
Departure Airport:

Arrival Airport:

Distance from SDY to HHI:
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- About this route
- SDY Airport Information
- HHI Airport Information
- Facts about SDY
- Facts about HHI
- Map of Nearest Airports to SDY
- List of Nearest Airports to SDY
- Map of Furthest Airports from SDY
- List of Furthest Airports from SDY
- Map of Nearest Airports to HHI
- List of Nearest Airports to HHI
- Map of Furthest Airports from HHI
- List of Furthest Airports from HHI
About this route:
A direct, nonstop flight between Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States and Wheeler AAF (HHI), Wahiawa, Hawaii, United States would travel a Great Circle distance of 3,467 miles (or 5,580 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 Sidney-Richland Municipal Airport and Wheeler AAF, 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 Sidney-Richland Municipal Airport and Wheeler AAF. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | SDY / KSDY |
Airport Name: | Sidney-Richland Municipal Airport |
Location: | Sidney, Montana, United States |
GPS Coordinates: | 47°42'24"N by 104°11'32"W |
Area Served: | Sidney, Montana |
Operator/Owner: | Sidney Richland Airport Authority |
Airport Type: | Public |
Elevation: | 1985 feet (605 meters) |
# of Runways: | 2 |
View all routes: | Routes from SDY |
More Information: | SDY Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | HHI / PHHI |
Airport Name: | Wheeler AAF |
Location: | Wahiawa, Hawaii, United States |
GPS Coordinates: | 21°29'4"N by 158°2'22"W |
Operator/Owner: | United States Army |
Airport Type: | Military |
Elevation: | 843 feet (257 meters) |
# of Runways: | 1 |
View all routes: | Routes from HHI |
More Information: | HHI Maps & Info |
Facts about Sidney-Richland Municipal Airport (SDY):
- The furthest airport from Sidney-Richland Municipal Airport (SDY) is Sir Gaëtan Duval Airport (RRG), which is located 10,383 miles (16,711 kilometers) away in Rodrigues Island, Mauritius.
- Sidney-Richland Municipal Airport (SDY) has 2 runways.
- Scheduled air service temporarily ceased on March 8, 2008, when Big Sky Airlines ended operations in bankruptcy.
- The closest airport to Sidney-Richland Municipal Airport (SDY) is Sloulin Field International Airport (ISN), which is located 41 miles (67 kilometers) NE of SDY.
Facts about Wheeler AAF (HHI):
- As of the 2000 Census, there were 2,829 people, 739 households, and 724 families residing on the base.
- The closest airport to Wheeler AAF (HHI) is Dillingham Airfield (HDH), which is located only 12 miles (19 kilometers) WNW of HHI.
- Wheeler Army Airfield was constructed in the pattern of the Garden City.
- In August 1987, the Secretary of the Interior designated Wheeler AFB as a National Historic Landmark, recognizing it as a site of national significance in the history of the United States and, in particular, World War II in the Pacific.
- The furthest airport from Wheeler AAF (HHI) is Ghanzi Airport (GNZ), which is nearly antipodal to Wheeler AAF (meaning Wheeler AAF is almost on the exact opposite side of the Earth from Ghanzi Airport), and is located 12,413 miles (19,976 kilometers) away in Ghanzi, Botswana.
- Wheeler AAF (HHI) currently has only 1 runway.
- Because of Wheeler AAF's relatively low elevation of 843 feet, planes can take off or land at Wheeler AAF 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.
- Wheeler Army Airfield was a primary target and site of the first attack on 7 December 1941, leading up to the attack on Pearl Harbor.