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

Arrival Airport:

Distance from FSI to TYS:
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- About this route
- FSI Airport Information
- TYS Airport Information
- Facts about FSI
- Facts about TYS
- Map of Nearest Airports to FSI
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- Map of Furthest Airports from FSI
- List of Furthest Airports from FSI
- Map of Nearest Airports to TYS
- List of Nearest Airports to TYS
- Map of Furthest Airports from TYS
- List of Furthest Airports from TYS
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and McGhee Tyson Airport (TYS), Knoxville, Tennessee, United States would travel a Great Circle distance of 816 miles (or 1,314 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 McGhee Tyson 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: | TYS / KTYS |
Airport Names: |
|
Location: | Knoxville, Tennessee, United States |
GPS Coordinates: | 35°48'39"N by 83°59'38"W |
Area Served: | Knoxville, Tennessee |
Operator/Owner: | Metropolitan Knoxville Airport Authority |
Airport Type: | Public |
Elevation: | 981 feet (299 meters) |
# of Runways: | 2 |
View all routes: | Routes from TYS |
More Information: | TYS Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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.
- 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 field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- 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.
- With the end of World War I, in October 1919 Post Field was deactivated as an active duty airfield in accordance with sharply reduced military budgets, and a small caretaker unit was assigned to the facility for administrative reasons to support the balloon school/company.
- 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.
- 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.
Facts about McGhee Tyson Airport (TYS):
- The closest airport to McGhee Tyson Airport (TYS) is Gatlinburg–Pigeon Forge Airport (GKT), which is located 26 miles (42 kilometers) E of TYS.
- McGhee Tyson Airport covers 2,250 acres at an elevation of 981 feet above mean sea level.
- The development of TYS helped the City of Alcoa diversify its economy and gain its economic independence from what is today Alcoa Inc., the world's third largest producer of aluminum.
- Because of McGhee Tyson Airport's relatively low elevation of 981 feet, planes can take off or land at McGhee Tyson 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.
- McGhee Tyson Airport handled 1,688,882 passengers last year.
- McGhee Tyson Airport (TYS) has 2 runways.
- The furthest airport from McGhee Tyson Airport (TYS) is Margaret River Airport (MGV), which is located 11,348 miles (18,263 kilometers) away in Margaret River, Western Australia, Australia.
- In addition to being known as "McGhee Tyson Airport", another name for TYS is "McGhee Tyson Air National Guard Base".