Nonstop flight route between Mokuleia, Hawaii, United States and Watertown, South Dakota, United States:
Departure Airport:

Arrival Airport:

Distance from HDH to ATY:
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- About this route
- HDH Airport Information
- ATY Airport Information
- Facts about HDH
- Facts about ATY
- Map of Nearest Airports to HDH
- List of Nearest Airports to HDH
- Map of Furthest Airports from HDH
- List of Furthest Airports from HDH
- Map of Nearest Airports to ATY
- List of Nearest Airports to ATY
- Map of Furthest Airports from ATY
- List of Furthest Airports from ATY
About this route:
A direct, nonstop flight between Dillingham Airfield (HDH), Mokuleia, Hawaii, United States and Watertown Regional Airport (ATY), Watertown, South Dakota, United States would travel a Great Circle distance of 3,776 miles (or 6,077 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 Dillingham Airfield and Watertown Regional 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 Dillingham Airfield and Watertown Regional Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | HDH / PHDH |
Airport Name: | Dillingham Airfield |
Location: | Mokuleia, Hawaii, United States |
GPS Coordinates: | 21°34'45"N by 158°11'49"W |
Operator/Owner: | U.S. Army |
Airport Type: | Public / Military |
Elevation: | 14 feet (4 meters) |
# of Runways: | 1 |
View all routes: | Routes from HDH |
More Information: | HDH Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | ATY / KATY |
Airport Names: |
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Location: | Watertown, South Dakota, United States |
GPS Coordinates: | 44°54'50"N by 97°9'16"W |
Area Served: | Watertown, South Dakota |
Operator/Owner: | City of Watertown |
Airport Type: | Public |
Elevation: | 1749 feet (533 meters) |
# of Runways: | 2 |
View all routes: | Routes from ATY |
More Information: | ATY Maps & Info |
Facts about Dillingham Airfield (HDH):
- The closest airport to Dillingham Airfield (HDH) is Wheeler AAF (HHI), which is located only 12 miles (19 kilometers) ESE of HDH.
- Because of Dillingham Airfield's relatively low elevation of 14 feet, planes can take off or land at Dillingham Airfield 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 Dillingham Airfield (HDH) is Ghanzi Airport (GNZ), which is nearly antipodal to Dillingham Airfield (meaning Dillingham Airfield is almost on the exact opposite side of the Earth from Ghanzi Airport), and is located 12,425 miles (19,995 kilometers) away in Ghanzi, Botswana.
- Nike missiles were installed in the 1950s, but were obsolete by 1970.
- In 1962, the State of Hawaii leased Dillingham for general aviation use.
- Dillingham Airfield (HDH) currently has only 1 runway.
- As a general aviation joint-use facility, the airfield has one runway, a UNICOM tower, powered aircraft and glider hangars, and a tie down area for recreation aircraft.
Facts about Watertown Regional Airport (ATY):
- Watertown Regional Airport (ATY) has 2 runways.
- The closest airport to Watertown Regional Airport (ATY) is Brookings Regional Airport (BKX), which is located 45 miles (73 kilometers) SSE of ATY.
- In addition to being known as "Watertown Regional Airport", another name for ATY is "Watertown Army Airfield".
- B-17 Flying Fortress and B-24 Liberator units underwent advanced training before going overseas.
- The furthest airport from Watertown Regional Airport (ATY) is Margaret River Airport (MGV), which is located 10,571 miles (17,013 kilometers) away in Margaret River, Western Australia, Australia.