Nonstop flight route between Fort Sill, Oklahoma, United States and O'Neill, Nebraska, United States:
Departure Airport:
(34°38'58"N by 98°24'7"W)
Arrival Airport:
(42°28'9"N by 98°41'13"W)
Distance from FSI to ONL:
540.51 miles (869.86 km)
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Jump to:
- About this route
- FSI Airport Information
- ONL Airport Information
- Facts about FSI
- Facts about ONL
- Map of Nearest Airports to FSI
- List of Nearest Airports to FSI
- Map of Furthest Airports from FSI
- List of Furthest Airports from FSI
- Map of Nearest Airports to ONL
- List of Nearest Airports to ONL
- Map of Furthest Airports from ONL
- List of Furthest Airports from ONL
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and O'Neill Municipal Airport (ONL), O'Neill, Nebraska, United States would travel a Great Circle distance of 541 miles (or 870 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 O'Neill Municipal 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: | ONL / KONL |
| Airport Names: |
|
| Location: | O'Neill, Nebraska, United States |
| GPS Coordinates: | 42°28'9"N by 98°41'13"W |
| Area Served: | O'Neill, Nebraska |
| Operator/Owner: | O'Neill Airport Authority |
| Airport Type: | Public |
| Elevation: | 2031 feet (619 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from ONL |
| More Information: | ONL Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- Henry Post Army Airfield was the first home of all Army Aviation Training after World War II before moving to Fort Rucker, Alabama in 1954.
- 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.
- 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.
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- 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.
- 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.
Facts about O'Neill Municipal Airport (ONL):
- The furthest airport from O'Neill Municipal Airport (ONL) is Sir Gaëtan Duval Airport (RRG), which is located 10,551 miles (16,980 kilometers) away in Rodrigues Island, Mauritius.
- In addition to being known as "O'Neill Municipal Airport", another name for ONL is "John L. Baker Field".
- O'Neill Municipal Airport (ONL) currently has only 1 runway.
- The field is named after John L.
- The closest airport to O'Neill Municipal Airport (ONL) is Ainsworth Regional Airport (ANW), which is located 67 miles (108 kilometers) W of ONL.
| 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 | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 66.92 miles (107.71 km) W | Ainsworth Regional Airport (ANW) | Ainsworth, Nebraska, United States | |
| 2 | 72.26 miles (116.30 km) ESE | Norfolk Regional Airport (OFK) | Norfolk, Nebraska, United States | |
| 3 | 72.96 miles (117.41 km) ENE | Chan Gurney Municipal Airport (YKN) | Yankton, South Dakota, United States | |
| 4 | 86.62 miles (139.40 km) SW | Broken Bow Municipal Airport (BBW) | Broken Bow, Nebraska, United States | |
| 5 | 95.93 miles (154.39 km) NNE | Mitchell Municipal Airport (MHE) | Mitchell, South Dakota, United States | |
| 6 | 98.30 miles (158.19 km) WNW | Miller Field (VTN) | Valentine, Nebraska, United States | |
| 7 | 98.75 miles (158.92 km) SE | Columbus Municipal Airport (OLU) | Columbus, Nebraska, United States | |
| 8 | 105.58 miles (169.92 km) S | Central Nebraska Regional Airport (GRI) | Grand Island, Nebraska, United States | |
| 9 | 117.51 miles (189.12 km) E | Sioux Gateway Airport (SUX) | Sioux City, Iowa, United States | |
| 10 | 121.11 miles (194.90 km) ESE | Scribner State AirportScribner Army Airfield (SCB) | Scribner, Nebraska, United States | |
| 11 | 121.52 miles (195.57 km) S | Kearney Regional Airport (EAR) | Kearney, Nebraska, United States | |
| 12 | 124.75 miles (200.76 km) NE | Sioux Falls Regional Airport (FSD) | Sioux Falls, South Dakota, United States | |
| 13 | 128.55 miles (206.88 km) E | Le Mars Municipal Airport (LRJ) | Le Mars, Iowa, United States | |
| 14 | 128.90 miles (207.45 km) SSW | Jim Kelly Field (LXN) | Lexington, Nebraska, United States | |
| 15 | 129.50 miles (208.41 km) S | Hastings Municipal Airport (HSI) | Hastings, Nebraska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,550.92 miles (16,980.02 km) SE | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 2 | 10,524.22 miles (16,937.04 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 3 | 10,501.10 miles (16,899.84 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 4 | 10,482.22 miles (16,869.46 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 5 | 10,476.89 miles (16,860.88 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 6 | 10,436.57 miles (16,795.99 km) W | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 7 | 10,422.64 miles (16,773.57 km) W | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 10,418.37 miles (16,766.70 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 9 | 10,412.75 miles (16,757.65 km) W | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 10 | 10,397.78 miles (16,733.56 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 10,387.42 miles (16,716.89 km) SE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 12 | 10,387.21 miles (16,716.55 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 13 | 10,355.38 miles (16,665.32 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 14 | 10,345.67 miles (16,649.70 km) SE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 15 | 10,331.39 miles (16,626.72 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |