Nonstop flight route between Fort Sill, Oklahoma, United States and Decorah, Iowa, United States:
Departure Airport:
(34°38'58"N by 98°24'7"W)
Arrival Airport:
(43°16'32"N by 91°44'21"W)
Distance from FSI to DEH:
694.66 miles (1,117.95 km)
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Jump to:
- About this route
- FSI Airport Information
- DEH Airport Information
- Facts about FSI
- Facts about DEH
- 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 DEH
- List of Nearest Airports to DEH
- Map of Furthest Airports from DEH
- List of Furthest Airports from DEH
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Decorah Municipal Airport (DEH), Decorah, Iowa, United States would travel a Great Circle distance of 695 miles (or 1,118 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 Decorah 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: | DEH / KDEH |
| Airport Name: | Decorah Municipal Airport |
| Location: | Decorah, Iowa, United States |
| GPS Coordinates: | 43°16'32"N by 91°44'21"W |
| Area Served: | Decorah, Iowa |
| Operator/Owner: | City of Decorah |
| Airport Type: | Public |
| Elevation: | 1158 feet (353 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from DEH |
| More Information: | DEH Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- Post Field served as a base for flight training for the Air Service.
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- The first Army aviation at Fort Sill began on 26 July 1915 when eight Curtiss JN-3 airplanes of the 1st Aero Squadron arrived from Rockwell Field, California.
- 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.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
- 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.
Facts about Decorah Municipal Airport (DEH):
- The furthest airport from Decorah Municipal Airport (DEH) is Margaret River Airport (MGV), which is located 10,859 miles (17,476 kilometers) away in Margaret River, Western Australia, Australia.
- Decorah Municipal Airport (DEH) currently has only 1 runway.
- The closest airport to Decorah Municipal Airport (DEH) is Prairie du Chien Municipal Airport (PCD), which is located 36 miles (58 kilometers) ESE of DEH.
| 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 | 35.74 miles (57.52 km) ESE | Prairie du Chien Municipal Airport (PCD) | Prairie du Chien, Wisconsin, United States | |
| 2 | 46.09 miles (74.18 km) WSW | Northeast Iowa Regional Airport (CCY) | Charles City, Iowa, United States | |
| 3 | 48.20 miles (77.57 km) NNE | La Crosse Regional Airport (LSE) | La Crosse, Wisconsin, United States | |
| 4 | 55.41 miles (89.18 km) N | Winona Municipal Airport (ONA) | Winona, Minnesota, United States | |
| 5 | 57.97 miles (93.29 km) NW | Rochester International Airport (RST) | Rochester, Minnesota, United States | |
| 6 | 59.86 miles (96.34 km) SW | Waterloo Regional Airport (Livingston Betsworth Field) (ALO) | Waterloo, Iowa, United States | |
| 7 | 65.54 miles (105.47 km) WNW | Austin Municipal Airport (AUM) | Austin, Minnesota, United States | |
| 8 | 68.82 miles (110.75 km) NE | Sparta/Fort McCoy Airport (CMY) | Sparta, Wisconsin, United States | |
| 9 | 78.55 miles (126.42 km) SSE | Monticello Regional Airport (MXO) | Monticello, Iowa, United States | |
| 10 | 78.62 miles (126.53 km) E | Tri-County Regional Airport (LNR) | Lone Rock, Wisconsin, United States | |
| 11 | 79.79 miles (128.41 km) SE | Dubuque Regional Airport (DBQ) | Dubuque, Iowa, United States | |
| 12 | 80.56 miles (129.64 km) W | Mason City Municipal Airport (MCW) | Mason City, Iowa, United States | |
| 13 | 86.33 miles (138.93 km) WNW | Albert Lea Municipal Airport (AEL) | Albert Lea, Minnesota, United States | |
| 14 | 87.33 miles (140.54 km) ENE | Volk Field Air National Guard Base (VOK) | Camp Douglas, Wisconsin, United States | |
| 15 | 94.88 miles (152.70 km) W | Forest City Municipal Airport (FXY) | Forest City, Iowa, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,859.31 miles (17,476.32 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 10,835.78 miles (17,438.45 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 10,820.68 miles (17,414.15 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 10,810.83 miles (17,398.31 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 10,764.13 miles (17,323.15 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 10,761.88 miles (17,319.52 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 7 | 10,751.46 miles (17,302.76 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 10,741.08 miles (17,286.05 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 9 | 10,726.20 miles (17,262.10 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 10 | 10,715.84 miles (17,245.43 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 10,664.65 miles (17,163.05 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 10,633.18 miles (17,112.40 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 10,622.70 miles (17,095.54 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 10,613.08 miles (17,080.05 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,574.98 miles (17,018.74 km) WSW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |