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

Arrival Airport:

Distance from FSI to ADT:
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- About this route
- FSI Airport Information
- ADT Airport Information
- Facts about FSI
- Facts about ADT
- 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 ADT
- List of Nearest Airports to ADT
- Map of Furthest Airports from ADT
- List of Furthest Airports from ADT
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Ada Municipal Airport (ADT), Ada, Oklahoma, United States would travel a Great Circle distance of 99 miles (or 159 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 Ada Municipal 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: | ADT / KADH |
Airport Names: |
|
Location: | Ada, Oklahoma, United States |
GPS Coordinates: | 34°48'15"N by 96°40'17"W |
Operator/Owner: | City of Ada |
Airport Type: | Public |
Elevation: | 1016 feet (310 meters) |
# of Runways: | 2 |
View all routes: | Routes from ADT |
More Information: | ADT Maps & Info |
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.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
- 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.
- 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.
- 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.
Facts about Ada Municipal Airport (ADT):
- In addition to being known as "Ada Municipal Airport", another name for ADT is "ADH".
- The furthest airport from Ada Municipal Airport (ADT) is Sir Gaëtan Duval Airport (RRG), which is located 10,835 miles (17,437 kilometers) away in Rodrigues Island, Mauritius.
- The closest airport to Ada Municipal Airport (ADT) is Ardmore Municipal Airport (ADM), which is located 40 miles (64 kilometers) SSW of ADT.
- Ada Municipal Airport (ADT) has 2 runways.