Nonstop flight route between Lockhart River, Queensland, Australia and Tacoma, Washington, United States:
Departure Airport:

Arrival Airport:

Distance from IRG to GRF:
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- About this route
- IRG Airport Information
- GRF Airport Information
- Facts about IRG
- Facts about GRF
- 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 GRF
- List of Nearest Airports to GRF
- Map of Furthest Airports from GRF
- List of Furthest Airports from GRF
About this route:
A direct, nonstop flight between Lockhart River Airport (IRG), Lockhart River, Queensland, Australia and Gray Army Airfield (GRF), Tacoma, Washington, United States would travel a Great Circle distance of 7,055 miles (or 11,354 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 Gray Army Airfield, 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 Gray Army Airfield. 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: | GRF / KGRF |
Airport Names: |
|
Location: | Tacoma, Washington, United States |
GPS Coordinates: | 47°4'45"N by 122°34'50"W |
Operator/Owner: | U.S. Army ATCA-ASO |
Airport Type: | Military |
Elevation: | 300 feet (91 meters) |
# of Runways: | 1 |
View all routes: | Routes from GRF |
More Information: | GRF Maps & Info |
Facts about Lockhart River Airport (IRG):
- 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 airport was constructed during World War II, and was used as a bomber and communications base for many years.
- Lockhart River Airport is an airport in Lockhart River, Queensland, Australia, located approximately 800 km north of Cairns on the eastern coast of Cape York Peninsula.
- 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.
- 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 closest airport to Lockhart River Airport (IRG) is Coen Airport (CUQ), which is located 69 miles (110 kilometers) S of IRG.
- Lockhart River Airport (IRG) currently has only 1 runway.
Facts about Gray Army Airfield (GRF):
- The closest airport to Gray Army Airfield (GRF) is McChord Field/McChord AFB (TCM), which is located only 6 miles (10 kilometers) NE of GRF.
- The field is named in honor of Captain Lawrence C.
- Reactivated following service in Vietnam, the 9th Infantry Division aviation units occupied GAAF in 1972.
- Gray Army Airfield (GRF) currently has only 1 runway.
- Used to support Fort Lewis, Army helicopters assisted with medical evacuations at Mount Rainier National Park on numerous occasions in the 1970s.
- Gray Army Airfield resides at elevation of 300 feet above mean sea level.
- In addition to being known as "Gray Army Airfield", another name for GRF is "(Joint Base Lewis-McChord)".
- Because of Gray Army Airfield's relatively low elevation of 300 feet, planes can take off or land at Gray Army 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.
- With World War II, Gray Army Airfield received 1.7 million dollars for new hangars and improved facilities.
- The furthest airport from Gray Army Airfield (GRF) is Tôlanaro Airport (FTU), which is located 10,809 miles (17,395 kilometers) away in Tôlanaro, Madagascar.