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

Arrival Airport:

Distance from FSI to BIR:
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- About this route
- FSI Airport Information
- BIR Airport Information
- Facts about FSI
- Facts about BIR
- 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 BIR
- List of Nearest Airports to BIR
- Map of Furthest Airports from BIR
- List of Furthest Airports from BIR
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Biratnagar Airport (BIR), Biratnagar, Nepal would travel a Great Circle distance of 8,197 miles (or 13,191 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 Biratnagar 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 Biratnagar 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: | BIR / VNVT |
Airport Name: | Biratnagar Airport |
Location: | Biratnagar, Nepal |
GPS Coordinates: | 26°28'53"N by 87°15'50"E |
Area Served: | Biratnagar, Nepal |
Operator/Owner: | Government |
Airport Type: | Public |
Elevation: | 236 feet (72 meters) |
# of Runways: | 1 |
View all routes: | Routes from BIR |
More Information: | BIR Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- Fort Sill has embarked on a new plan to support the museum in providing a more dynamic learning experience for the 200,000 military and civilian personnel who visit each year.
- 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.
- Henry Post Army Airfield was the first home of all Army Aviation Training after World War II before moving to Fort Rucker, Alabama in 1954.
- The first Army aviation at Fort Sill began on 26 July 1915 when eight Curtiss JN-3 airplanes of the 1st Aero Squadron arrived from Rockwell Field, California.
- Air Service/Corps units assigned to Post Field between 1919 and 1941
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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.
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
Facts about Biratnagar Airport (BIR):
- The furthest airport from Biratnagar Airport (BIR) is Mataveri International Airport (IPC), which is located 11,408 miles (18,359 kilometers) away in Easter Island, Chile.
- Biratnagar Airport is an airport serving Biratnagar, a city of the Morang district in the Kosi zone in Nepal.
- Because of Biratnagar Airport's relatively low elevation of 236 feet, planes can take off or land at Biratnagar 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 Biratnagar Airport (BIR) is Bhojpur Airport (BHP), which is located 48 miles (77 kilometers) NNW of BIR.
- Biratnagar Airport (BIR) currently has only 1 runway.
- List of airports in Nepal