Nonstop flight route between Fort Sill, Oklahoma, United States and Falkland Islands:
Departure Airport:

Arrival Airport:

Distance from FSI to MPN:
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- About this route
- FSI Airport Information
- MPN Airport Information
- Facts about FSI
- Facts about MPN
- 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 MPN
- List of Nearest Airports to MPN
- Map of Furthest Airports from MPN
- List of Furthest Airports from MPN
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and RAF Mount Pleasant (MPN), Falkland Islands would travel a Great Circle distance of 6,445 miles (or 10,372 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 RAF Mount Pleasant, 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 RAF Mount Pleasant. 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: | MPN / EGYP |
Airport Name: | RAF Mount Pleasant |
Location: | Falkland Islands |
GPS Coordinates: | 51°49'22"S by 58°26'49"W |
Operator/Owner: | Ministry of Defence |
View all routes: | Routes from MPN |
More Information: | MPN Maps & Info |
Facts about Henry Post Army Airfield (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.
- 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 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.
- 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 (FSI) currently has only 1 runway.
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
Facts about RAF Mount Pleasant (MPN):
- On 2 April 2012, an Uruguayan air company, Air Class Líneas Aéreas, gained permission from the Uruguayan Ministry of Defence to start a commercial flight to the Falkland Islands.
- The closest airport to RAF Mount Pleasant (MPN) is Port Stanley Airport (PSY), which is located 30 miles (49 kilometers) ENE of MPN.
- The furthest airport from RAF Mount Pleasant (MPN) is Mohe Gulian Airport (OHE), which is nearly antipodal to RAF Mount Pleasant (meaning RAF Mount Pleasant is almost on the exact opposite side of the Earth from Mohe Gulian Airport), and is located 12,353 miles (19,879 kilometers) away in Mohe, Heilongjiang, China.
- Using the IATA airport code MPN, RAF Mount Pleasant also acts as the Falkland Islands' only international airport, along with its military role.
- There is also a Joint Communications Unit providing the electronic warfare and command and control systems for the Royal Navy, British Army and Royal Air Force.
- RAF Mount Pleasant is the newest permanent airfield in the Royal Air Force.
- After the surrender of the Argentine ground forces on the islands, the British still faced the problem of potential Argentine air attacks from Argentina, so an aircraft carrier had to remain on station to guard the islands with its squadron of Sea Harriers until the local airfield was prepared for jet aircraft.
- The British government felt that Stanley airfield was not the best option for a large, permanent station and decided to construct a new RAF station and make it the centrepiece of considerably strengthened air defences for the Falkland Islands, South Georgia and the South Sandwich Islands.