Nonstop flight route between Lockhart River, Queensland, Australia and Alpena, Michigan, United States:
Departure Airport:

Arrival Airport:

Distance from IRG to APN:
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- About this route
- IRG Airport Information
- APN Airport Information
- Facts about IRG
- Facts about APN
- Map of Nearest Airports to IRG
- List of Nearest Airports to IRG
- Map of Furthest Airports from IRG
- List of Furthest Airports from IRG
- Map of Nearest Airports to APN
- List of Nearest Airports to APN
- Map of Furthest Airports from APN
- List of Furthest Airports from APN
About this route:
A direct, nonstop flight between Lockhart River Airport (IRG), Lockhart River, Queensland, Australia and Alpena County Regional Airport (APN), Alpena, Michigan, United States would travel a Great Circle distance of 8,904 miles (or 14,330 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 Lockhart River Airport and Alpena County Regional 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 Lockhart River Airport and Alpena County Regional Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | IRG / YLHR |
Airport Name: | Lockhart River Airport |
Location: | Lockhart River, Queensland, Australia |
GPS Coordinates: | 12°47'12"S by 143°18'16"E |
Operator/Owner: | Lockhart River Aerodrome Company Pty Ltd |
Airport Type: | Public |
Elevation: | 77 feet (23 meters) |
# of Runways: | 1 |
View all routes: | Routes from IRG |
More Information: | IRG Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | APN / KAPN |
Airport Name: | Alpena County Regional Airport |
Location: | Alpena, Michigan, United States |
GPS Coordinates: | 45°4'41"N by 83°33'37"W |
Area Served: | Alpena, Michigan |
Operator/Owner: | County of Alpena |
Airport Type: | Public |
Elevation: | 690 feet (210 meters) |
# of Runways: | 2 |
View all routes: | Routes from APN |
More Information: | APN Maps & Info |
Facts about Lockhart River Airport (IRG):
- On 7 May 2005 a Fairchild Metroliner aircraft crashed 6 nautical miles north-west of Lockhart River Airport, killing all 15 people on board.
- The furthest airport from Lockhart River Airport (IRG) is Cesária Évora International Airport (VXE), which is located 11,611 miles (18,686 kilometers) away in São Vicente, Cape Verde.
- Because of Lockhart River Airport's relatively low elevation of 77 feet, planes can take off or land at Lockhart River 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.
- Lockhart River Airport (IRG) currently has only 1 runway.
- The closest airport to Lockhart River Airport (IRG) is Coen Airport (CUQ), which is located 69 miles (110 kilometers) S of IRG.
- In addition, the 479th Service Squadron provided supplies for the B-26 and B-17s assigned to the airport, as well as operating a repair and maintenance depot for B-24 Liberator aircraft.
Facts about Alpena County Regional Airport (APN):
- The closest airport to Alpena County Regional Airport (APN) is Oscoda-Wurtsmith Airport (OSC), which is located 44 miles (71 kilometers) S of APN.
- Alpena County Regional Airport (APN) has 2 runways.
- Alpena County Regional Airport covers an area of 3,084 acres at an elevation of 690 feet above mean sea level.
- Several scenes of the film Die Hard 2 were shot there.
- Because of Alpena County Regional Airport's relatively low elevation of 690 feet, planes can take off or land at Alpena County Regional 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 Alpena County Regional Airport (APN) is Margaret River Airport (MGV), which is located 11,184 miles (17,999 kilometers) away in Margaret River, Western Australia, Australia.