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

Arrival Airport:

Distance from MMI to FSI:
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- About this route
- MMI Airport Information
- FSI Airport Information
- Facts about MMI
- Facts about FSI
- Map of Nearest Airports to MMI
- List of Nearest Airports to MMI
- Map of Furthest Airports from MMI
- List of Furthest Airports from MMI
- Map of Nearest Airports to FSI
- List of Nearest Airports to FSI
- Map of Furthest Airports from FSI
- List of Furthest Airports from FSI
About this route:
A direct, nonstop flight between McMinn County Airport (MMI), Athens, Tennessee, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 784 miles (or 1,262 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 McMinn County Airport and Henry Post Army Airfield, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | MMI / KMMI |
Airport Name: | McMinn County Airport |
Location: | Athens, Tennessee, United States |
GPS Coordinates: | 35°23'49"N by 84°33'45"W |
Area Served: | Athens, Tennessee |
Operator/Owner: | McMinn County |
Airport Type: | Public |
Elevation: | 858 feet (262 meters) |
# of Runways: | 1 |
View all routes: | Routes from MMI |
More Information: | MMI Maps & Info |
Arrival 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 |
Facts about McMinn County Airport (MMI):
- The furthest airport from McMinn County Airport (MMI) is Margaret River Airport (MGV), which is located 11,317 miles (18,212 kilometers) away in Margaret River, Western Australia, Australia.
- McMinn County Airport is a county-owned, public-use airport located three nautical miles southeast of the central business district of Athens, a city in McMinn County, Tennessee, United States.
- The airport is attended from 0830 to Dusk and has 100LL aviation fuel and Jet A.
- Because of McMinn County Airport's relatively low elevation of 858 feet, planes can take off or land at McMinn County 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.
- McMinn County Airport (MMI) currently has only 1 runway.
- The closest airport to McMinn County Airport (MMI) is Rockwood Municipal Airport (RKW), which is located 37 miles (59 kilometers) N of MMI.
- McMinn County Airport covers an area of 76 acres at an elevation of 858 feet above mean sea level.
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.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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.
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
- 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 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 AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
- 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.