Nonstop flight route between Portsmouth, Ohio, United States and Namatanai, Papua New Guinea:
Departure Airport:

Arrival Airport:

Distance from PMH to ATN:
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- About this route
- PMH Airport Information
- ATN Airport Information
- Facts about PMH
- Facts about ATN
- Map of Nearest Airports to PMH
- List of Nearest Airports to PMH
- Map of Furthest Airports from PMH
- List of Furthest Airports from PMH
- Map of Nearest Airports to ATN
- List of Nearest Airports to ATN
- Map of Furthest Airports from ATN
- List of Furthest Airports from ATN
About this route:
A direct, nonstop flight between Greater Portsmouth Regional Airport (PMH), Portsmouth, Ohio, United States and Namatanai Airport (ATN), Namatanai, Papua New Guinea would travel a Great Circle distance of 8,213 miles (or 13,217 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 Greater Portsmouth Regional Airport and Namatanai 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 Greater Portsmouth Regional Airport and Namatanai Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | PMH / KPMH |
Airport Name: | Greater Portsmouth Regional Airport |
Location: | Portsmouth, Ohio, United States |
GPS Coordinates: | 38°50'26"N by 82°50'49"W |
Area Served: | Portsmouth, Ohio |
Operator/Owner: | Scioto County Airport Authority |
Airport Type: | Public |
Elevation: | 663 feet (202 meters) |
# of Runways: | 1 |
View all routes: | Routes from PMH |
More Information: | PMH Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | ATN / AYNX |
Airport Name: | Namatanai Airport |
Location: | Namatanai, Papua New Guinea |
GPS Coordinates: | 3°40'1"S by 152°26'30"E |
Elevation: | 137 feet (42 meters) |
# of Runways: | 1 |
View all routes: | Routes from ATN |
More Information: | ATN Maps & Info |
Facts about Greater Portsmouth Regional Airport (PMH):
- Because of Greater Portsmouth Regional Airport's relatively low elevation of 663 feet, planes can take off or land at Greater Portsmouth 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 closest airport to Greater Portsmouth Regional Airport (PMH) is Lawrence County Airpark (HTW), which is located 35 miles (56 kilometers) SSE of PMH.
- Greater Portsmouth Regional Airport (PMH) currently has only 1 runway.
- Greater Portsmouth Regional Airport covers an area of 246 acres at an elevation of 663 feet above mean sea level.
- The furthest airport from Greater Portsmouth Regional Airport (PMH) is Margaret River Airport (MGV), which is located 11,385 miles (18,322 kilometers) away in Margaret River, Western Australia, Australia.
Facts about Namatanai Airport (ATN):
- The furthest airport from Namatanai Airport (ATN) is Governador Carlos Wilson Airport (FEN), which is located 11,818 miles (19,019 kilometers) away in Fernando de Noronha, Pernambuco, Brazil.
- Namatanai Airport (ATN) currently has only 1 runway.
- Because of Namatanai Airport's relatively low elevation of 137 feet, planes can take off or land at Namatanai 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 Namatanai Airport (ATN) is Lihir Island Regional Airport (LNV), which is located 45 miles (72 kilometers) NNE of ATN.