Nonstop flight route between Greeneville, Tennessee, United States and Fort Sill, Oklahoma, United States:
Departure Airport:
(36°11'35"N by 82°48'53"W)
Arrival Airport:
(34°38'58"N by 98°24'7"W)
Distance from GCY to FSI:
883.12 miles (1,421.24 km)
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- About this route
- GCY Airport Information
- FSI Airport Information
- Facts about GCY
- Facts about FSI
- Map of Nearest Airports to GCY
- List of Nearest Airports to GCY
- Map of Furthest Airports from GCY
- List of Furthest Airports from GCY
- 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 Greeneville-Greene County Municipal Airport (GCY), Greeneville, Tennessee, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 883 miles (or 1,421 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 Greeneville-Greene County Municipal 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: | GCY / KGCY |
| Airport Name: | Greeneville-Greene County Municipal Airport |
| Location: | Greeneville, Tennessee, United States |
| GPS Coordinates: | 36°11'35"N by 82°48'53"W |
| Operator/Owner: | Town of Greeneville & Greene County |
| Airport Type: | Public |
| Elevation: | 1608 feet (490 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from GCY |
| More Information: | GCY 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 Greeneville-Greene County Municipal Airport (GCY):
- Greeneville-Greene County Municipal Airport (GCY) currently has only 1 runway.
- The closest airport to Greeneville-Greene County Municipal Airport (GCY) is Tri-Cities Regional Airport (TRI), which is located 30 miles (48 kilometers) NE of GCY.
- The furthest airport from Greeneville-Greene County Municipal Airport (GCY) is Margaret River Airport (MGV), which is located 11,413 miles (18,368 kilometers) away in Margaret River, Western Australia, Australia.
Facts about Henry Post Army Airfield (FSI):
- 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.
- Air Service/Corps units assigned to Post Field between 1919 and 1941
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- 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.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 29.91 miles (48.14 km) NE | Tri-Cities Regional Airport (TRI) | Blountville, Tennessee (Tri-Cities area), United States |     |
| 2 | 31.27 miles (50.33 km) W | Morristown Regional Airport (MOR) | Morristown, Tennessee, United States | |
| 3 | 46.12 miles (74.22 km) WSW | Gatlinburg–Pigeon Forge Airport (GKT) | Sevierville, Tennessee, United States | |
| 4 | 54.50 miles (87.70 km) SSE | Asheville Regional Airport (AVL) | Fletcher, North Carolina, United States | |
| 5 | 55.27 miles (88.95 km) NE | Virginia Highlands Airport (VJI) | Abingdon, Virginia, United States | |
| 6 | 57.12 miles (91.93 km) NNE | Lonesome Pine Airport (LNP) | Wise, Virginia, United States | |
| 7 | 70.98 miles (114.24 km) WSW | McGhee Tyson Airport (TYS) | Knoxville, Tennessee, United States | |
| 8 | 72.03 miles (115.93 km) ESE | Foothills Regional Airport (MRN) | Morganton, North Carolina, United States | |
| 9 | 85.62 miles (137.78 km) ESE | Hickory Regional Airport (HKY) | Hickory, North Carolina, United States | |
| 10 | 93.34 miles (150.22 km) NW | London-Corbin Airport (LOZ) | London, Kentucky, United States | |
| 11 | 95.71 miles (154.03 km) SSE | Greenville–Spartanburg International Airport (GSP) | Greenville / Spartanburg, South Carolina, United States | |
| 12 | 95.73 miles (154.05 km) E | Wilkes County Airport (IKB) | North Wilkesboro, North Carolina, United States | |
| 13 | 95.77 miles (154.12 km) S | Pickens County Airport (LQK) | Pickens, South Carolina, United States | |
| 14 | 96.54 miles (155.36 km) SSE | Greenville Downtown Airport (GMU) | Greenville, South Carolina, United States | |
| 15 | 100.59 miles (161.88 km) SSE | Spartanburg Downtown Memorial Airport (SPA) | Spartanburg, South Carolina, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,413.13 miles (18,367.61 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,392.29 miles (18,334.06 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,371.31 miles (18,300.30 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 4 | 11,360.47 miles (18,282.86 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 5 | 11,349.46 miles (18,265.14 km) W | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 11,332.87 miles (18,238.43 km) W | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 7 | 11,329.07 miles (18,232.33 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 8 | 11,324.39 miles (18,224.80 km) W | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 9 | 11,297.34 miles (18,181.26 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 10 | 11,278.69 miles (18,151.25 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 11 | 11,276.67 miles (18,147.99 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 12 | 11,266.99 miles (18,132.41 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 13 | 11,243.78 miles (18,095.06 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 14 | 11,242.45 miles (18,092.93 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 15 | 11,236.39 miles (18,083.17 km) WSW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 5.72 miles (9.20 km) S | Lawton–Fort Sill Regional Airport (LAW) | Lawton, Oklahoma, United States | |
| 2 | 28.03 miles (45.12 km) ESE | Halliburton Field (DUC) | Duncan, Oklahoma, United States | |
| 3 | 38.98 miles (62.73 km) WSW | Frederick Regional Airport (FDR) | Frederick, Oklahoma, United States | |
| 4 | 39.53 miles (63.61 km) NE | Chickasha Municipal Airport (CHK) | Chickasha, Oklahoma, United States | |
| 5 | 43.74 miles (70.39 km) WNW | Hobart Regional Airport (HBR) | Hobart, Oklahoma, United States | |
| 6 | 45.95 miles (73.94 km) S | Sheppard Air Force Base (SPS) | Wichita Falls, Texas, United States | |
| 7 | 49.22 miles (79.21 km) W | Altus Air Force Base (LTS) | Altus, Oklahoma, United States | |
| 8 | 53.30 miles (85.78 km) W | Altus/Quartz Mountain Regional Airport (AXS) | Altus, Oklahoma, United States | |
| 9 | 54.76 miles (88.12 km) S | Kickapoo Downtown Airport (KIP) | Wichita Falls, Texas, United States | |
| 10 | 65.69 miles (105.71 km) NW | Clinton-Sherman Industrial Airpark (CSM) | Clinton, Oklahoma, United States | |
| 11 | 66.85 miles (107.58 km) NE | University of Oklahoma Max Westheimer Airport (OUN) | Norman, Oklahoma, United States | |
| 12 | 68.33 miles (109.96 km) NNW | Clinton Regional Airport (CLK) | Clinton, Oklahoma, United States | |
| 13 | 68.51 miles (110.26 km) NE | Will Rogers World Airport (OKC) | Oklahoma City, Oklahoma, United States | |
| 14 | 74.55 miles (119.97 km) NE | Wiley Post Airport (PWA) | Oklahoma City, Oklahoma, United States | |
| 15 | 78.07 miles (125.64 km) NE | Tinker Air Force Base (TIK) | Oklahoma City, Oklahoma, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,920.33 miles (17,574.52 km) SE | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 2 | 10,680.39 miles (17,188.37 km) ESE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 3 | 10,614.31 miles (17,082.03 km) SW | Cocos (Keeling) Island Airport (CCK) | Cocos Islands, Australia | |
| 4 | 10,601.93 miles (17,062.12 km) ESE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 5 | 10,589.08 miles (17,041.43 km) ESE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 6 | 10,532.55 miles (16,950.46 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 7 | 10,512.35 miles (16,917.95 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 8 | 10,492.35 miles (16,885.76 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 9 | 10,478.49 miles (16,863.45 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 10 | 10,478.05 miles (16,862.75 km) W | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 11 | 10,472.77 miles (16,854.25 km) W | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 12 | 10,460.30 miles (16,834.17 km) W | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 13 | 10,458.62 miles (16,831.48 km) W | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 14 | 10,456.31 miles (16,827.76 km) W | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 15 | 10,452.67 miles (16,821.90 km) W | Perth Airport (PER) | Perth, Western Australia, Australia | |