Nonstop flight route between Pituffik, Greenland and Ludington, Michigan, United States:
Departure Airport:

Arrival Airport:

Distance from THU to LDM:
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- About this route
- THU Airport Information
- LDM Airport Information
- Facts about THU
- Facts about LDM
- Map of Nearest Airports to THU
- List of Nearest Airports to THU
- Map of Furthest Airports from THU
- List of Furthest Airports from THU
- Map of Nearest Airports to LDM
- List of Nearest Airports to LDM
- Map of Furthest Airports from LDM
- List of Furthest Airports from LDM
About this route:
A direct, nonstop flight between Thule Air Base (THU), Pituffik, Greenland and Mason County Airport (LDM), Ludington, Michigan, United States would travel a Great Circle distance of 2,308 miles (or 3,714 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 relatively short distance between Thule Air Base and Mason County Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | THU / BGTL |
Airport Names: |
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Location: | Pituffik, Greenland |
GPS Coordinates: | 76°31'51"N by 68°42'11"W |
View all routes: | Routes from THU |
More Information: | THU Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | LDM / KLDM |
Airport Name: | Mason County Airport |
Location: | Ludington, Michigan, United States |
GPS Coordinates: | 43°57'44"N by 86°24'28"W |
Area Served: | Ludington |
Operator/Owner: | Mason County |
Airport Type: | Public |
Elevation: | 646 feet (197 meters) |
# of Runways: | 2 |
View all routes: | Routes from LDM |
More Information: | LDM Maps & Info |
Facts about Thule Air Base (THU):
- After the German occupation of Denmark on 9 April 1940, Henrik Kauffmann Danish Ambassador to the United States, made an agreement "In the name of the king" with the United States authorizing the United States to defend the Danish colonies on Greenland from German aggression - this agreement faced Kaufmann with a charge of high treason.
- The closest airport to Thule Air Base (THU) is Savissivik Heliport (SVR), which is located 69 miles (111 kilometers) ESE of THU.
- After liberation, Denmark ratified the Kauffmann treaty but began efforts to take over U.S.
- In 1957 construction began on 4 Nike Missile sites around the base, and they and their radar systems were operational by the end of 1958.
- The furthest airport from Thule Air Base (THU) is Hobart International Airport (HBA), which is located 9,883 miles (15,905 kilometers) away in Hobart, Tasmania, Australia.
- In addition to being known as "Thule Air Base", another name for THU is "Thule AB".
- Thule Air Base or Thule Air Base/Pituffik Airport, is the United States Air Force's northernmost base, located 1,207 km north of the Arctic Circle and 1,524 km from the North Pole on the northwest side of the island of Greenland.
- In 1949, Denmark joined NATO and abandoned its attempt to remove the United States bases.
Facts about Mason County Airport (LDM):
- The furthest airport from Mason County Airport (LDM) is Margaret River Airport (MGV), which is located 11,095 miles (17,856 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Mason County Airport (LDM) is Manistee County Blacker Airport (MBL), which is located 23 miles (37 kilometers) NNE of LDM.
- Because of Mason County Airport's relatively low elevation of 646 feet, planes can take off or land at Mason County 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.
- Mason County Airport (LDM) has 2 runways.