Nonstop flight route between Ludington, Michigan, United States and Koyukuk, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from LDM to KYU:
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- About this route
- LDM Airport Information
- KYU Airport Information
- Facts about LDM
- Facts about KYU
- Map of Nearest Airports to LDM
- List of Nearest Airports to LDM
- Map of Furthest Airports from LDM
- List of Furthest Airports from LDM
- Map of Nearest Airports to KYU
- List of Nearest Airports to KYU
- Map of Furthest Airports from KYU
- List of Furthest Airports from KYU
About this route:
A direct, nonstop flight between Mason County Airport (LDM), Ludington, Michigan, United States and Koyukuk Airport (KYU), Koyukuk, Alaska, United States would travel a Great Circle distance of 3,000 miles (or 4,828 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 Mason County Airport and Koyukuk 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 Mason County Airport and Koyukuk Airport. You'll see that it will travel the same route of the red line on this map!
Departure 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 |
Arrival Airport Information:
IATA / ICAO Codes: | KYU / PFKU |
Airport Name: | Koyukuk Airport |
Location: | Koyukuk, Alaska, United States |
GPS Coordinates: | 64°52'32"N by 157°43'50"W |
Area Served: | Koyukuk, Alaska |
Operator/Owner: | State of Alaska DOT&PF - Northern Region |
Airport Type: | Public |
Elevation: | 149 feet (45 meters) |
# of Runways: | 1 |
View all routes: | Routes from KYU |
More Information: | KYU Maps & Info |
Facts about Mason County Airport (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.
- 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.
- Mason County Airport (LDM) has 2 runways.
- The closest airport to Mason County Airport (LDM) is Manistee County Blacker Airport (MBL), which is located 23 miles (37 kilometers) NNE of LDM.
Facts about Koyukuk Airport (KYU):
- Because of Koyukuk Airport's relatively low elevation of 149 feet, planes can take off or land at Koyukuk 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 Koyukuk Airport (KYU) is George Airport (GRJ), which is located 10,304 miles (16,583 kilometers) away in George, South Africa.
- As per Federal Aviation Administration records, this airport had 1,018 passenger boardings in calendar year 2007, a decrease of 22% from the 1,305 enplanements in 2006.
- Koyukuk Airport (KYU) currently has only 1 runway.
- Koyukuk Airport covers an area of 287 acres at an elevation of 149 feet above mean sea level.
- The closest airport to Koyukuk Airport (KYU) is Nulato Airport (NUL), which is located only 14 miles (23 kilometers) SW of KYU.