Nonstop flight route between Lockhart River, Queensland, Australia and St. Marys, Pennsylvania, United States:
Departure Airport:

Arrival Airport:

Distance from IRG to STQ:
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- About this route
- IRG Airport Information
- STQ Airport Information
- Facts about IRG
- Facts about STQ
- 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 STQ
- List of Nearest Airports to STQ
- Map of Furthest Airports from STQ
- List of Furthest Airports from STQ
About this route:
A direct, nonstop flight between Lockhart River Airport (IRG), Lockhart River, Queensland, Australia and St. Marys Municipal Airport (STQ), St. Marys, Pennsylvania, United States would travel a Great Circle distance of 9,241 miles (or 14,873 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 St. Marys Municipal 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 St. Marys Municipal 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: | STQ / KOYM |
Airport Names: |
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Location: | St. Marys, Pennsylvania, United States |
GPS Coordinates: | 41°24'45"N by 78°30'8"W |
Area Served: | St. Marys, Pennsylvania |
Operator/Owner: | City of St. Marys |
Airport Type: | Public |
Elevation: | 1934 feet (589 meters) |
# of Runways: | 1 |
View all routes: | Routes from STQ |
More Information: | STQ Maps & Info |
Facts about Lockhart River Airport (IRG):
- Lockhart River Airport (IRG) currently has only 1 runway.
- 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.
- The closest airport to Lockhart River Airport (IRG) is Coen Airport (CUQ), which is located 69 miles (110 kilometers) S of IRG.
- 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.
- 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 St. Marys Municipal Airport (STQ):
- The furthest airport from St. Marys Municipal Airport (STQ) is Margaret River Airport (MGV), which is located 11,533 miles (18,560 kilometers) away in Margaret River, Western Australia, Australia.
- The airport opened on June 30, 1950 with a 3,700' x 75' runway.
- In addition to being known as "St. Marys Municipal Airport", another name for STQ is "OYM".
- The closest airport to St. Marys Municipal Airport (STQ) is DuBois Regional Airport (DUJ), which is located 26 miles (42 kilometers) SW of STQ.
- St. Marys Municipal Airport (STQ) currently has only 1 runway.