Nonstop flight route between Johnston Atoll, U.S. Minor Outlying Islands and Cape Gloucester, Papua New Guinea:
Departure Airport:

Arrival Airport:

Distance from JON to CGC:
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- About this route
- JON Airport Information
- CGC Airport Information
- Facts about JON
- Facts about CGC
- Map of Nearest Airports to JON
- List of Nearest Airports to JON
- Map of Furthest Airports from JON
- List of Furthest Airports from JON
- Map of Nearest Airports to CGC
- List of Nearest Airports to CGC
- Map of Furthest Airports from CGC
- List of Furthest Airports from CGC
About this route:
A direct, nonstop flight between Johnston Atoll Airport (JON), Johnston Atoll, U.S. Minor Outlying Islands and Cape Gloucester Airport (CGC), Cape Gloucester, Papua New Guinea would travel a Great Circle distance of 3,254 miles (or 5,237 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 Johnston Atoll Airport and Cape Gloucester 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 Johnston Atoll Airport and Cape Gloucester Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | JON / PJON |
Airport Name: | Johnston Atoll Airport |
Location: | Johnston Atoll, U.S. Minor Outlying Islands |
GPS Coordinates: | 16°43'42"N by 169°32'3"W |
Airport Type: | Public |
Elevation: | 7 feet (2 meters) |
# of Runways: | 1 |
View all routes: | Routes from JON |
More Information: | JON Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | CGC / AYCG |
Airport Names: |
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Location: | Cape Gloucester, Papua New Guinea |
GPS Coordinates: | 5°27'33"S by 148°25'57"E |
Airport Type: | Public |
Elevation: | 78 feet (24 meters) |
# of Runways: | 1 |
View all routes: | Routes from CGC |
More Information: | CGC Maps & Info |
Facts about Johnston Atoll Airport (JON):
- Because of Johnston Atoll Airport's relatively low elevation of 7 feet, planes can take off or land at Johnston Atoll 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 1935 personnel from the US Navy's Patrol Wing Two carried out some minor construction to develop the atoll for seaplane operation.
- Johnston Atoll Airport (JON) currently has only 1 runway.
- In September 1941 construction of an airfield on Johnston Island commenced.
- The closest airport to Johnston Atoll Airport (JON) is PMRF Barking Sands (BKH), which is located 733 miles (1,179 kilometers) ENE of JON.
- The furthest airport from Johnston Atoll Airport (JON) is Lubango Mukanka Airport (SDD), which is nearly antipodal to Johnston Atoll Airport (meaning Johnston Atoll Airport is almost on the exact opposite side of the Earth from Lubango Mukanka Airport), and is located 12,195 miles (19,627 kilometers) away in Lubango, Angola.
Facts about Cape Gloucester Airport (CGC):
- In addition to being known as "Cape Gloucester Airport", other names for CGC include "CPG" and "Cape Gloucester Airport".
- Because of Cape Gloucester Airport's relatively low elevation of 78 feet, planes can take off or land at Cape Gloucester 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 12th Defense Battalion was assigned to the airfield between 30 December 1943 - late May 1944 Australian RAAF Units Based at Cape Gloucester consisted of the 78 Squadron, equipped with P-40 Warhawks.
- The closest airport to Cape Gloucester Airport (CGC) is Finschhafen Airport (FIN), which is located 90 miles (144 kilometers) SSW of CGC.
- Cape Gloucester Airport (CGC) currently has only 1 runway.
- The furthest airport from Cape Gloucester Airport (CGC) is Governador Carlos Wilson Airport (FEN), which is located 11,791 miles (18,975 kilometers) away in Fernando de Noronha, Pernambuco, Brazil.