Nonstop flight route between Mokuleia, Hawaii, United States and Alert, Nunavut, Canada:
Departure Airport:

Arrival Airport:

Distance from HDH to YLT:
Share this route:
Jump to:
- About this route
- HDH Airport Information
- YLT Airport Information
- Facts about HDH
- Facts about YLT
- 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 YLT
- List of Nearest Airports to YLT
- Map of Furthest Airports from YLT
- List of Furthest Airports from YLT
About this route:
A direct, nonstop flight between Dillingham Airfield (HDH), Mokuleia, Hawaii, United States and Alert Airport (YLT), Alert, Nunavut, Canada would travel a Great Circle distance of 4,794 miles (or 7,715 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 Alert 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 Alert 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: | YLT / CYLT |
Airport Name: | Alert Airport |
Location: | Alert, Nunavut, Canada |
GPS Coordinates: | 82°31'4"N by 62°16'50"W |
Operator/Owner: | DND/1CdnAirDiv Alert AMO Ottawa |
Airport Type: | Military |
Elevation: | 100 feet (30 meters) |
# of Runways: | 1 |
View all routes: | Routes from YLT |
More Information: | YLT Maps & Info |
Facts about Dillingham Airfield (HDH):
- 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.
- A communications station called Camp Kawaihapai was established here in 1922 on 67 acres along the Oahu Railway and Land Company line.
- The runway was paved, extended to 9,000 feet long, and a crosswind runway added from 1942-1945.
- Dillingham Airfield (HDH) currently has only 1 runway.
- Nike missiles were installed in the 1950s, but were obsolete by 1970.
- 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.
Facts about Alert Airport (YLT):
- Because of Alert Airport's relatively low elevation of 100 feet, planes can take off or land at Alert 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.
- The furthest airport from Alert Airport (YLT) is Teniente Rodolfo Marsh Airport (TNM), which is located 9,999 miles (16,092 kilometers) away in Villa Las Estrellas, Antarctica.
- Alert Airport (YLT) currently has only 1 runway.
- A weather station was established on the site in 1950, and in 1957 construction began on the military facilities which are still in use to this day.
- The airport's fire and rescue operations are supported by a 2012 KME/Fort Garry Fire Truck ARFF.
- There have been two crashes involving fatalities at the airfield since it was established.
- The closest airport to Alert Airport (YLT) is Eureka Aerodrome (YEU), which is located 299 miles (481 kilometers) WSW of YLT.