Nonstop flight route between Marham, Norfolk, East Anglia, United Kingdom and Fort Sill, Oklahoma, United States:
Departure Airport:

Arrival Airport:

Distance from KNF to FSI:
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- About this route
- KNF Airport Information
- FSI Airport Information
- Facts about KNF
- Facts about FSI
- Map of Nearest Airports to KNF
- List of Nearest Airports to KNF
- Map of Furthest Airports from KNF
- List of Furthest Airports from KNF
- Map of Nearest Airports to FSI
- List of Nearest Airports to FSI
- Map of Furthest Airports from FSI
- List of Furthest Airports from FSI
About this route:
A direct, nonstop flight between RAF Marham (KNF), Marham, Norfolk, East Anglia, United Kingdom and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 4,700 miles (or 7,563 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 RAF Marham and Henry Post Army Airfield, 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 RAF Marham and Henry Post Army Airfield. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | KNF / EGYM |
Airport Name: | RAF Marham |
Location: | Marham, Norfolk, East Anglia, United Kingdom |
GPS Coordinates: | 52°38'53"N by 0°33'2"E |
Operator/Owner: | Ministry of Defence |
View all routes: | Routes from KNF |
More Information: | KNF Maps & Info |
Arrival 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 |
Facts about RAF Marham (KNF):
- The furthest airport from RAF Marham (KNF) is Chatham Islands (CHT), which is located 11,811 miles (19,008 kilometers) away in Waitangi, Chatham Islands, New Zealand.
- The Wellingtons moved out in 1941 and Mosquitos from No.
- The closest airport to RAF Marham (KNF) is RAF Lakenheath (LKZ), which is located only 17 miles (27 kilometers) S of KNF.
Facts about Henry Post Army Airfield (FSI):
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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.
- Post Field served as a base for flight training for the Air Service.
- 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 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.
- 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.
- 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.
- Henry Post Army Airfield is a military use airport located at Fort Sill in Comanche County, Oklahoma, United States.