Nonstop flight route between Fort Sill, Oklahoma, United States and Kathmandu, Nepal:
Departure Airport:

Arrival Airport:

Distance from FSI to KTM:
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- About this route
- FSI Airport Information
- KTM Airport Information
- Facts about FSI
- Facts about KTM
- Map of Nearest Airports to FSI
- List of Nearest Airports to FSI
- Map of Furthest Airports from FSI
- List of Furthest Airports from FSI
- Map of Nearest Airports to KTM
- List of Nearest Airports to KTM
- Map of Furthest Airports from KTM
- List of Furthest Airports from KTM
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Tribhuvan International Airport (KTM), Kathmandu, Nepal would travel a Great Circle distance of 8,122 miles (or 13,071 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 Henry Post Army Airfield 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 Henry Post Army Airfield and Tribhuvan International Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | FSI / KFSI |
Airport Name: | Henry Post Army Airfield |
Location: | Fort Sill, Oklahoma, United States |
GPS Coordinates: | 34°38'58"N by 98°24'7"W |
Operator/Owner: | U.S. Army ATCA-ASO |
Airport Type: | Military |
Elevation: | 1189 feet (362 meters) |
# of Runways: | 1 |
View all routes: | Routes from FSI |
More Information: | FSI Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | KTM / VNKT |
Airport Names: |
|
Location: | Kathmandu, Nepal |
GPS Coordinates: | 27°41'47"N by 85°21'32"E |
Area Served: | Kathmandu, Nepal |
Operator/Owner: | Civil Aviation Authority of Nepal (CAAN) |
Airport Type: | Public |
Elevation: | 4390 feet (1,338 meters) |
# of Runways: | 1 |
View all routes: | Routes from KTM |
More Information: | KTM Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- After returning from combat duty in France, a cadre of the 135th Aero Squadron ) was assigned to Post Field as an observation squadron, supplying aircraft for the United States Army Field Artillery School at Fort Sill and supported Army units at Fort Leavenworth, Kansas.
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
- The furthest airport from Henry Post Army Airfield (FSI) is Sir Gaëtan Duval Airport (RRG), which is located 10,920 miles (17,575 kilometers) away in Rodrigues Island, Mauritius.
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- Post Field served as a base for flight training for the Air Service.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- The closest airport to Henry Post Army Airfield (FSI) is Lawton–Fort Sill Regional Airport (LAW), which is located only 6 miles (9 kilometers) S of FSI.
Facts about Tribhuvan International Airport (KTM):
- The closest airport to Tribhuvan International Airport (KTM) is Ramechhap Airport (RHP), which is located 48 miles (77 kilometers) ESE of KTM.
- Tribhuvan International Airport (KTM) currently has only 1 runway.
- 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.
- 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.
- In 1955 the airport was inaugurated by King Mahendra and renamed Tribhuvan Airport in memory of the king's father.
- The first jet aircraft to land at Tribhuvan was a Air india Boeing 707, which touched down on the 6,600 feet runway in 1967.
- 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.
- Tribhuvan International Airport handled 3,405,015 passengers last year.
- In addition to being known as "Tribhuvan International Airport", another name for KTM is "त्रिभुवन अन्तर्राष्ट्रिय विमानस्थल".