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

Arrival Airport:

Distance from HHI to SDY:
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- About this route
- HHI Airport Information
- SDY Airport Information
- Facts about HHI
- Facts about 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
- Map of Nearest Airports to SDY
- List of Nearest Airports to SDY
- Map of Furthest Airports from SDY
- List of Furthest Airports from SDY
About this route:
A direct, nonstop flight between Wheeler AAF (HHI), Wahiawa, Hawaii, United States and Sidney-Richland Municipal Airport (SDY), Sidney, Montana, 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 Wheeler AAF and Sidney-Richland Municipal 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 Wheeler AAF and Sidney-Richland Municipal Airport. You'll see that it will travel the same route of the red line on this map!
Departure 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 |
Arrival 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 |
Facts about Wheeler AAF (HHI):
- 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 AAF (HHI) currently has only 1 runway.
- 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.
- The closest airport to Wheeler AAF (HHI) is Dillingham Airfield (HDH), which is located only 12 miles (19 kilometers) WNW of HHI.
- There are 739 households out of which 77.9% have children under the age of 18 living with them, 89.7% are married couples living together, 6.4% have a female householder with no husband present, and 2.0% are non-families.
- In June 1923, 13 months after the designation of the new flying field, shop hangars, airplane hangars, and oil storage tanks were erected.
- Wheeler Army Airfield was constructed in the pattern of the Garden City.
- The installation has a National Historic Landmark District in association with the attack on 7 December 1941.
- 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.
Facts about Sidney-Richland Municipal Airport (SDY):
- As per the Federal Aviation Administration, this airport had 2,031 passenger boardings in calendar year 2008, 2,766 in 2009, and 3,659 in 2010.
- 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.
- 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.
- Sidney-Richland Municipal Airport (SDY) has 2 runways.