Nonstop flight route between Fort Hood / Killeen, Texas, United States and Fort Sill, Oklahoma, United States:
Departure Airport:
(31°4'1"N by 97°49'44"W)
Arrival Airport:
(34°38'58"N by 98°24'7"W)
Distance from GRK to FSI:
249.75 miles (401.94 km)
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Jump to:
- About this route
- GRK Airport Information
- FSI Airport Information
- Facts about GRK
- Facts about FSI
- Map of Nearest Airports to GRK
- List of Nearest Airports to GRK
- Map of Furthest Airports from GRK
- List of Furthest Airports from GRK
- 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 Killeen–Fort Hood Regional Airport (GRK), Fort Hood / Killeen, Texas, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 250 miles (or 402 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 Killeen–Fort Hood 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: | GRK / KGRK |
| Airport Name: | Killeen–Fort Hood Regional Airport |
| Location: | Fort Hood / Killeen, Texas, United States |
| GPS Coordinates: | 31°4'1"N by 97°49'44"W |
| Airport Type: | Public |
| Elevation: | 1015 feet (309 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from GRK |
| More Information: | GRK 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 Killeen–Fort Hood Regional Airport (GRK):
- The furthest airport from Killeen–Fort Hood Regional Airport (GRK) is Sir Gaëtan Duval Airport (RRG), which is located 11,030 miles (17,751 kilometers) away in Rodrigues Island, Mauritius.
- Killeen–Fort Hood Regional Airport (GRK) currently has only 1 runway.
- The airport has one runway designated 15/33 with a PEM surface measuring 10,000 by 200 feet.
- The closest airport to Killeen–Fort Hood Regional Airport (GRK) is Hood Army Airfield (HLR), which is located only 8 miles (14 kilometers) NE of GRK.
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.
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- 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.
- 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.
- 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.
- Post Field served as a base for flight training for the Air Service.
- The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 8.41 miles (13.53 km) NE | Hood Army Airfield (HLR) | Fort Hood / Killeen, Texas, United States |     |
| 2 | 8.53 miles (13.73 km) E | Skylark Field (ILE) | Killeen, Texas, United States | |
| 3 | 25.59 miles (41.18 km) ENE | Draughon-Miller Central Texas Regional Airport (TPL) | Temple, Texas, United States | |
| 4 | 48.75 miles (78.46 km) SSE | Austin Executive Airport (EDC) | Austin, Texas, United States | |
| 5 | 51.58 miles (83.01 km) NE | Waco Regional Airport (ACT) | Waco, Texas, United States | |
| 6 | 59.47 miles (95.71 km) NE | TSTC Waco Airport (CNW) | Waco, Texas, United States | |
| 7 | 61.04 miles (98.23 km) S | Austin–Bergstrom International Airport (AUS) | Austin, Texas, United States | |
| 8 | 83.29 miles (134.04 km) NW | Brownwood Regional Airport (BWD) | Brownwood, Texas, United States | |
| 9 | 88.76 miles (142.85 km) W | Curtis Field (BBD) | Brady, Texas, United States | |
| 10 | 92.05 miles (148.14 km) ESE | Coulter Field (CFD) | Bryan, Texas, United States | |
| 11 | 93.00 miles (149.66 km) ESE | Easterwood Airport (CLL) | College Station, Texas, United States | |
| 12 | 106.17 miles (170.86 km) SW | Kerrville Municipal Airport (ERV) | Kerrville, Texas, United States | |
| 13 | 107.10 miles (172.36 km) WNW | Coleman Municipal Airport (COM) | Coleman, Texas, United States | |
| 14 | 107.15 miles (172.43 km) NE | C. David Campbell Field (CRS) | Corsicana, Texas, United States | |
| 15 | 109.59 miles (176.37 km) SSW | Randolph Air Force Base Joint Base San Antonio (RND) | Universal City, Texas, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,030.08 miles (17,751.14 km) ESE | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 2 | 10,831.98 miles (17,432.34 km) SW | Cocos (Keeling) Island Airport (CCK) | Cocos Islands, Australia | |
| 3 | 10,750.24 miles (17,300.79 km) ESE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 4 | 10,653.12 miles (17,144.50 km) ESE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 5 | 10,644.22 miles (17,130.17 km) ESE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 6 | 10,515.94 miles (16,923.73 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 7 | 10,502.94 miles (16,902.80 km) W | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| 8 | 10,497.69 miles (16,894.35 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 9 | 10,497.51 miles (16,894.06 km) W | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 10 | 10,489.33 miles (16,880.90 km) W | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 10,489.19 miles (16,880.67 km) W | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 10,480.21 miles (16,866.23 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 13 | 10,478.52 miles (16,863.51 km) W | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 14 | 10,474.65 miles (16,857.27 km) W | Carnarvon Airport (CVQ) | Carnarvon, Western Australia, Australia | |
| 15 | 10,459.45 miles (16,832.81 km) W | Jandakot Airport (JAD) | Jandakot, 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 | |