Nonstop flight route between Portsmouth, New Hampshire, United States and Kathmandu, Nepal:

About this route:

A direct, nonstop flight between Portsmouth International Airport at Pease (PSM), Portsmouth, New Hampshire, United States and Tribhuvan International Airport (KTM), Kathmandu, Nepal would travel a Great Circle distance of 7,318 miles (or 11,777 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 Tribhuvan International 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 Tribhuvan International Airport. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

Facts about Portsmouth International Airport at Pease (PSM):

• 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.
• Portsmouth International Airport at Pease (PSM) currently has only 1 runway.
• Pease was one of 7 Launch Abort Sites and one of 18 Emergency Landing Sites for NASA space shuttle orbiters.
• The airport is located within the Pease International Tradeport, a result of the ongoing redevelopment of the former Pease Air Force Base which was closed under Base Realignment and Closure Commission action in the late 1980s and early 1990s.
• 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.
• 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.

Facts about Tribhuvan International Airport (KTM):

• The Airport is connected to the Cities of Kathmandu and Lalitpur through the Busses of Sajha Yatayat, which stop in front of the International Terminal.
• Because of Tribhuvan International Airport's high elevation of 4,390 feet, planes must typically fly at a faster airspeed in order to takeoff or land at KTM. Combined with a high temperature, this could make KTM a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
• The furthest airport from Tribhuvan International Airport (KTM) is Mataveri International Airport (IPC), which is located 11,530 miles (18,556 kilometers) away in Easter Island, Chile.
• Tribhuvan International Airport handled 3,405,015 passengers last year.
• The airport is now again connected to Europe with service by Turkish Airlines to Istanbul, after a long gap without service to Europe when Royal Nepal ended their flights to Frankfurt and London in 2001.
• The closest airport to Tribhuvan International Airport (KTM) is Ramechhap Airport (RHP), which is located 48 miles (77 kilometers) ESE of KTM.
• In 1955 the airport was inaugurated by King Mahendra and renamed Tribhuvan Airport in memory of the king's father.
• In addition to being known as "Tribhuvan International Airport", another name for KTM is "त्रिभुवन अन्तर्राष्ट्रिय विमानस्थल".
• Tribhuvan International Airport (KTM) currently has only 1 runway.