Nonstop flight route between Mokuleia, Hawaii, United States and St. Mary's, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from HDH to KSM:
Share this route:
Jump to:
- About this route
- HDH Airport Information
- KSM Airport Information
- Facts about HDH
- Facts about KSM
- 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 KSM
- List of Nearest Airports to KSM
- Map of Furthest Airports from KSM
- List of Furthest Airports from KSM
About this route:
A direct, nonstop flight between Dillingham Airfield (HDH), Mokuleia, Hawaii, United States and St. Mary's Airport (KSM), St. Mary's, Alaska, United States would travel a Great Circle distance of 2,808 miles (or 4,518 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 St. Mary's 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 St. Mary's 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: | KSM / PASM |
Airport Name: | St. Mary's Airport |
Location: | St. Mary's, Alaska, United States |
GPS Coordinates: | 62°3'38"N by 163°18'6"W |
Operator/Owner: | Alaska DOT&PF |
Airport Type: | Public |
Elevation: | 312 feet (95 meters) |
# of Runways: | 2 |
View all routes: | Routes from KSM |
More Information: | KSM Maps & Info |
Facts about Dillingham Airfield (HDH):
- Dillingham Airfield (HDH) currently has only 1 runway.
- A communications station called Camp Kawaihapai was established here in 1922 on 67 acres along the Oahu Railway and Land Company line.
- 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 television series Lost filmed several scenes at Dillingham Airfield, due to its remote location close to the North Shore, where the series was primarily filmed.
- The closest airport to Dillingham Airfield (HDH) is Wheeler AAF (HHI), which is located only 12 miles (19 kilometers) ESE of HDH.
- In 1962, the State of Hawaii leased Dillingham for general aviation use.
- 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 a public and military use airport located two nautical miles west of the central business district of Mokulēʻia, in Honolulu County on the North Shore of Oʻahu in the U.S.
Facts about St. Mary's Airport (KSM):
- Because of St. Mary's Airport's relatively low elevation of 312 feet, planes can take off or land at St. Mary's Airport 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.
- St. Mary's Airport (KSM) has 2 runways.
- The closest airport to St. Mary's Airport (KSM) is Mountain Village Airport (MOU), which is located only 13 miles (20 kilometers) W of KSM.
- The furthest airport from St. Mary's Airport (KSM) is Cape Town International Airport (CPT), which is located 10,494 miles (16,889 kilometers) away in Cape Town, South Africa.