Nonstop flight route between Fort Sill, Oklahoma, United States and Harrisburg, Pennsylvania, United States:
Departure Airport:

Arrival Airport:

Distance from FSI to MDT:
Share this route:
Jump to:
- About this route
- FSI Airport Information
- MDT Airport Information
- Facts about FSI
- Facts about MDT
- 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 MDT
- List of Nearest Airports to MDT
- Map of Furthest Airports from MDT
- List of Furthest Airports from MDT
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Harrisburg International Airport (MDT), Harrisburg, Pennsylvania, United States would travel a Great Circle distance of 1,244 miles (or 2,002 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 Harrisburg International 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: | MDT / KMDT |
Airport Name: | Harrisburg International Airport |
Location: | Harrisburg, Pennsylvania, United States |
GPS Coordinates: | 40°11'35"N by 76°45'47"W |
Area Served: | Harrisburg, Pennsylvania |
Airport Type: | Public |
Elevation: | 310 feet (94 meters) |
# of Runways: | 1 |
View all routes: | Routes from MDT |
More Information: | MDT Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- Post Field served as a base for flight training for the Air Service.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
- 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.
- 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.
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- 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.
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
Facts about Harrisburg International Airport (MDT):
- Harrisburg International Airport has freight-forwarding capability.
- Runway 13 has a CAT III approach allowing operations down to 600 feet RVR.
- About 1,400 people work in the system of Harrisburg International Airport.
- Because of Harrisburg International Airport's relatively low elevation of 310 feet, planes can take off or land at Harrisburg International 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.
- Harrisburg International Airport (MDT) currently has only 1 runway.
- The furthest airport from Harrisburg International Airport (MDT) is Margaret River Airport (MGV), which is located 11,654 miles (18,755 kilometers) away in Margaret River, Western Australia, Australia.
- Built in 2004, and attached to the new terminal building via a climate-controlled sky bridge, the Multi-Modal Transportation Facility is a four-story facility that handles all ground transportation.
- The closest airport to Harrisburg International Airport (MDT) is Capital City Airport (HAR), which is located only 5 miles (8 kilometers) WNW of MDT.