Nonstop flight route between Blountville, Tennessee (Tri-Cities area), United States and Fort Sill, Oklahoma, United States:
Departure Airport:

Arrival Airport:

Distance from TRI to FSI:
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- About this route
- TRI Airport Information
- FSI Airport Information
- Facts about TRI
- Facts about FSI
- Map of Nearest Airports to TRI
- List of Nearest Airports to TRI
- Map of Furthest Airports from TRI
- List of Furthest Airports from TRI
- 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 Tri-Cities Regional Airport (TRI), Blountville, Tennessee (Tri-Cities area), United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 907 miles (or 1,459 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 Tri-Cities Regional 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: | TRI / KTRI |
Airport Names: |
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Location: | Blountville, Tennessee (Tri-Cities area), United States |
GPS Coordinates: | 36°28'31"N by 82°24'26"W |
Area Served: | Tri-Cities, Tennessee |
Operator/Owner: | Tri-Cities Airport Commission |
Airport Type: | Public |
Elevation: | 1519 feet (463 meters) |
# of Runways: | 2 |
View all routes: | Routes from TRI |
More Information: | TRI 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 Tri-Cities Regional Airport (TRI):
- In the mid-1930s Johnson City’s airfield and Kingsport’s airstrip were deemed not practical for expansion.
- Tri-Cities Regional Airport, is a public airport in Sullivan County, Tennessee.
- In addition to being known as "Tri-Cities Regional Airport", another name for TRI is "Tri-Cities Regional Airport, TN/VA".
- Federal Aviation Administration records say the airport had 202,730 passenger boardings in calendar year 2008, 217,783 in 2009 and 202,114 in 2010.
- The furthest airport from Tri-Cities Regional Airport (TRI) is Margaret River Airport (MGV), which is located 11,434 miles (18,402 kilometers) away in Margaret River, Western Australia, Australia.
- Tri-Cities Regional Airport (TRI) has 2 runways.
- The closest airport to Tri-Cities Regional Airport (TRI) is Virginia Highlands Airport (VJI), which is located 25 miles (41 kilometers) NE of TRI.
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.
- Air Service/Corps units assigned to Post Field between 1919 and 1941
- 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 (FSI) currently has only 1 runway.
- 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.
- 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.