Nonstop flight route between Portland, Maine, United States and Lockhart River, Queensland, Australia:
Departure Airport:

Arrival Airport:

Distance from PWM to IRG:
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- About this route
- PWM Airport Information
- IRG Airport Information
- Facts about PWM
- Facts about IRG
- Map of Nearest Airports to PWM
- List of Nearest Airports to PWM
- Map of Furthest Airports from PWM
- List of Furthest Airports from PWM
- Map of Nearest Airports to IRG
- List of Nearest Airports to IRG
- Map of Furthest Airports from IRG
- List of Furthest Airports from IRG
About this route:
A direct, nonstop flight between Portland International Jetport (PWM), Portland, Maine, United States and Lockhart River Airport (IRG), Lockhart River, Queensland, Australia would travel a Great Circle distance of 9,519 miles (or 15,319 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 Portland International Jetport and Lockhart River 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 Portland International Jetport and Lockhart River Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | PWM / KPWM |
Airport Name: | Portland International Jetport |
Location: | Portland, Maine, United States |
GPS Coordinates: | 43°38'45"N by 70°18'33"W |
Area Served: | Portland, Maine |
Airport Type: | Public |
Elevation: | 76 feet (23 meters) |
# of Runways: | 2 |
View all routes: | Routes from PWM |
More Information: | PWM Maps & Info |
Arrival 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 |
Facts about Portland International Jetport (PWM):
- Portland International Jetport (PWM) has 2 runways.
- That year regional Air New England began service in Portland, competing with Northeast Airlines intrastate and between Portland and Boston.
- Because of Portland International Jetport's relatively low elevation of 76 feet, planes can take off or land at Portland International Jetport 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.
- That same year, regional Ransome Airlines, doing business as Delta Connection, began a route between Portland and Boston.
- The closest airport to Portland International Jetport (PWM) is Naval Air Station Brunswick (NHZ), which is located 25 miles (40 kilometers) NE of PWM.
- Some service began to return as the industry's economics improved in 2005 and 2006.
- Peoplexpress Airlines arrived in 1983, the first jet competitor to Northeast/Delta at PWM.
- The furthest airport from Portland International Jetport (PWM) is Margaret River Airport (MGV), which is located 11,705 miles (18,838 kilometers) away in Margaret River, Western Australia, Australia.
Facts about Lockhart River Airport (IRG):
- Lockhart River Airport (IRG) currently has only 1 runway.
- 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.
- The closest airport to Lockhart River Airport (IRG) is Coen Airport (CUQ), which is located 69 miles (110 kilometers) S of 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.
- 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.