Nonstop flight route between Fort Sill, Oklahoma, United States and Pine Ridge, South Dakota, United States:
Departure Airport:

Arrival Airport:

Distance from FSI to XPR:
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- About this route
- FSI Airport Information
- XPR Airport Information
- Facts about FSI
- Facts about XPR
- 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 XPR
- List of Nearest Airports to XPR
- Map of Furthest Airports from XPR
- List of Furthest Airports from XPR
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Pine Ridge Airport (XPR), Pine Ridge, South Dakota, United States would travel a Great Circle distance of 619 miles (or 996 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 relatively short distance between Henry Post Army Airfield and Pine Ridge Airport, the route shown on this map most likely still appears to be a straight line.
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: | XPR / KIEN |
Airport Names: |
|
Location: | Pine Ridge, South Dakota, United States |
GPS Coordinates: | 43°1'21"N by 102°30'39"W |
Area Served: | Pine Ridge, South Dakota |
Operator/Owner: | Oglala Sioux Tribe |
Airport Type: | Public |
Elevation: | 3333 feet (1,016 meters) |
# of Runways: | 2 |
View all routes: | Routes from XPR |
More Information: | XPR Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- 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.
- Post Field served as a base for flight training for the Air Service.
- The Fort Sill Army Radar Approach Control is the Army's Second busiest Air Traffic Control Facility, providing Radar Approach Control service to Henry Post Army Air Field, Lawton/Fort Sill Regional Airport, Duncan/Haliburton Airport and many smaller airports in the area.
- 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.
- 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.
- In 1940 the Artillery decided that the Air Corps had outgrown such mundane chores as artillery spotting, and it was decided that it would take care of itself with its own observation aircraft.
- Henry Post Army Airfield is a military use airport located at Fort Sill in Comanche County, Oklahoma, United States.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
Facts about Pine Ridge Airport (XPR):
- The closest airport to Pine Ridge Airport (XPR) is Chadron Municipal Airport (CDR), which is located 32 miles (52 kilometers) WSW of XPR.
- The furthest airport from Pine Ridge Airport (XPR) is Sir Gaëtan Duval Airport (RRG), which is located 10,632 miles (17,111 kilometers) away in Rodrigues Island, Mauritius.
- Pine Ridge Airport (XPR) has 2 runways.
- In addition to being known as "Pine Ridge Airport", another name for XPR is "IEN".