Nonstop flight route between Portsmouth, New Hampshire, United States and Ranong, Thailand:
Departure Airport:

Arrival Airport:

Distance from PSM to UNN:
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- About this route
- PSM Airport Information
- UNN Airport Information
- Facts about PSM
- Facts about UNN
- Map of Nearest Airports to PSM
- List of Nearest Airports to PSM
- Map of Furthest Airports from PSM
- List of Furthest Airports from PSM
- Map of Nearest Airports to UNN
- List of Nearest Airports to UNN
- Map of Furthest Airports from UNN
- List of Furthest Airports from UNN
About this route:
A direct, nonstop flight between Portsmouth International Airport at Pease (PSM), Portsmouth, New Hampshire, United States and Ranong Airport (UNN), Ranong, Thailand would travel a Great Circle distance of 8,724 miles (or 14,040 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 Portsmouth International Airport at Pease and Ranong 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 Portsmouth International Airport at Pease and Ranong Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | PSM / KPSM |
Airport Name: | Portsmouth International Airport at Pease |
Location: | Portsmouth, New Hampshire, United States |
GPS Coordinates: | 43°4'41"N by 70°49'23"W |
Area Served: | Portsmouth, New Hampshire |
Operator/Owner: | Pease Development Authority |
Airport Type: | Public / Military |
Elevation: | 100 feet (30 meters) |
# of Runways: | 1 |
View all routes: | Routes from PSM |
More Information: | PSM Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | UNN / VTSR |
Airport Name: | Ranong Airport |
Location: | Ranong, Thailand |
GPS Coordinates: | 9°46'38"N by 98°35'7"E |
Area Served: | Tambon Ratchakrut, Amphoe Mueang Ranong, Ranong, Thailand |
Operator/Owner: | Government |
Elevation: | 57 feet (17 meters) |
# of Runways: | 1 |
View all routes: | Routes from UNN |
More Information: | UNN Maps & Info |
Facts about Portsmouth International Airport at Pease (PSM):
- Portsmouth International Airport at Pease (PSM) currently has only 1 runway.
- Portsmouth International Airport at Pease covers an area of 3,000 acres at an elevation of 100 feet above mean sea level.
- The closest airport to Portsmouth International Airport at Pease (PSM) is Sanford Seacoast Regional Airport (SFM), which is located 23 miles (36 kilometers) NNE of PSM.
- The airport served as a hub for Pan Am from 1998 until 2005, when all mainline Pan Am flights at the airport were suspended.
- Because of Portsmouth International Airport at Pease's relatively low elevation of 100 feet, planes can take off or land at Portsmouth International Airport at Pease 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.
- Pease was one of 7 Launch Abort Sites and one of 18 Emergency Landing Sites for NASA space shuttle orbiters.
- The furthest airport from Portsmouth International Airport at Pease (PSM) is Margaret River Airport (MGV), which is located 11,729 miles (18,875 kilometers) away in Margaret River, Western Australia, Australia.
Facts about Ranong Airport (UNN):
- Because of Ranong Airport's relatively low elevation of 57 feet, planes can take off or land at Ranong 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 Ranong Airport (UNN) is Kawthaung Airport (KAW), which is located only 19 miles (31 kilometers) N of UNN.
- Ranong Airport (UNN) currently has only 1 runway.
- The furthest airport from Ranong Airport (UNN) is Capitán FAP Carlos Martínez de Pinillos International Airport (TRU), which is nearly antipodal to Ranong Airport (meaning Ranong Airport is almost on the exact opposite side of the Earth from Capitán FAP Carlos Martínez de Pinillos International Airport), and is located 12,241 miles (19,699 kilometers) away in Trujillo, Peru.