Nonstop flight route between Mokuleia, Hawaii, United States and Orcas Island, Washington, United States:
Departure Airport:

Arrival Airport:

Distance from HDH to RSJ:
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- About this route
- HDH Airport Information
- RSJ Airport Information
- Facts about HDH
- Facts about RSJ
- 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 RSJ
- List of Nearest Airports to RSJ
- Map of Furthest Airports from RSJ
- List of Furthest Airports from RSJ
About this route:
A direct, nonstop flight between Dillingham Airfield (HDH), Mokuleia, Hawaii, United States and Rosario Seaplane Base (RSJ), Orcas Island, Washington, United States would travel a Great Circle distance of 2,693 miles (or 4,335 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 Rosario Seaplane Base, 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 Rosario Seaplane Base. 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: | RSJ / |
Airport Names: |
|
Location: | Orcas Island, Washington, United States |
GPS Coordinates: | 48°38'44"N by 122°52'5"W |
Area Served: | Rosario, Washington |
Operator/Owner: | Rosario Resort |
Airport Type: | Public |
Elevation: | 0 feet (0 meters) |
# of Runways: | 2 |
View all routes: | Routes from RSJ |
More Information: | RSJ Maps & Info |
Facts about Dillingham Airfield (HDH):
- A communications station called Camp Kawaihapai was established here in 1922 on 67 acres along the Oahu Railway and Land Company line.
- 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.
- The television series Hawaii Five-0 also used Dillingham Airfield in its second episode, Ohana, originally aired on 27 September 2010.
- 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.
- Dillingham Airfield is part of a centralized state structure governing all of the airports and seaports of Hawaii.
- 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.
Facts about Rosario Seaplane Base (RSJ):
- The closest airport to Rosario Seaplane Base (RSJ) is Westsound Seaplane Base (WSX), which is located only 4 miles (7 kilometers) WSW of RSJ.
- Because of Rosario Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Rosario Seaplane Base 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 Rosario Seaplane Base (RSJ) is Tôlanaro Airport (FTU), which is located 10,715 miles (17,244 kilometers) away in Tôlanaro, Madagascar.
- In addition to being known as "Rosario Seaplane Base", another name for RSJ is "W49".
- Rosario Seaplane Base (RSJ) has 2 runways.