Nonstop flight route between Defiance, Ohio, United States and Fort Sill, Oklahoma, United States:
Departure Airport:
(41°20'14"N by 84°25'44"W)
Arrival Airport:
(34°38'58"N by 98°24'7"W)
Distance from DFI to FSI:
888.53 miles (1,429.94 km)
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Jump to:
- About this route
- DFI Airport Information
- FSI Airport Information
- Facts about DFI
- Facts about FSI
- Map of Nearest Airports to DFI
- List of Nearest Airports to DFI
- Map of Furthest Airports from DFI
- List of Furthest Airports from DFI
- 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 Defiance Memorial Airport (DFI), Defiance, Ohio, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 889 miles (or 1,430 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 Defiance Memorial 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: | DFI / KDFI |
| Airport Name: | Defiance Memorial Airport |
| Location: | Defiance, Ohio, United States |
| GPS Coordinates: | 41°20'14"N by 84°25'44"W |
| Area Served: | Defiance, Ohio |
| Operator/Owner: | Board of County Commissioners |
| Airport Type: | Public |
| Elevation: | 707 feet (215 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from DFI |
| More Information: | DFI 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 Defiance Memorial Airport (DFI):
- Because of Defiance Memorial Airport's relatively low elevation of 707 feet, planes can take off or land at Defiance Memorial Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
- The furthest airport from Defiance Memorial Airport (DFI) is Margaret River Airport (MGV), which is located 11,256 miles (18,114 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Defiance Memorial Airport (DFI) is Toledo Express Airport (TOL), which is located 36 miles (59 kilometers) ENE of DFI.
- Defiance Memorial Airport (DFI) currently has only 1 runway.
Facts about Henry Post Army Airfield (FSI):
- 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.
- 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.
- 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.
- 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.
- Air Service/Corps units assigned to Post Field between 1919 and 1941
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 36.48 miles (58.71 km) ENE | Toledo Express Airport (TOL) | Toledo, Ohio, United States |     |
| 2 | 39.80 miles (64.06 km) WNW | Tri-State Steuben County Airport (ANQ) | Angola, Indiana, United States | |
| 3 | 39.93 miles (64.26 km) WSW | Smith Field (SMD) | Fort Wayne, Indiana, United States | |
| 4 | 40.90 miles (65.82 km) NNE | Lenawee County Airport (ADG) | Adrian, Michigan, United States | |
| 5 | 41.27 miles (66.42 km) SSW | Decatur Hi-Way Airport (DCR) | Decatur, Indiana, United States | |
| 6 | 45.49 miles (73.21 km) ESE | Findlay Airport (FDY) | Findlay, Ohio, United States | |
| 7 | 46.96 miles (75.57 km) WSW | Fort Wayne International Airport (FWA) | Fort Wayne, Indiana, United States | |
| 8 | 48.24 miles (77.64 km) SSE | Lima Allen County Airport (AOH) | Lima, Ohio, United States | |
| 9 | 51.48 miles (82.84 km) ENE | Toledo Executive Airport (TDZ) | Toledo, Ohio, United States | |
| 10 | 58.71 miles (94.48 km) S | Neil Armstrong Airport (AXV) | Wapakoneta, Ohio, United States | |
| 11 | 63.80 miles (102.67 km) N | Jackson County Airport (JXN) | Jackson, Michigan, United States | |
| 12 | 70.59 miles (113.61 km) NNE | Ann Arbor Municipal Airport (ARB) | Ann Arbor, Michigan, United States | |
| 13 | 71.92 miles (115.74 km) W | Goshen Municipal Airport (GSH) | Goshen, Indiana, United States | |
| 14 | 77.54 miles (124.79 km) NE | Willow Run Airport (YIP) (YIP) | Detroit, Michigan, United States | |
| 15 | 79.18 miles (127.42 km) NNW | W. K. Kellogg Airport (BTL) | Battle Creek, Michigan, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,255.61 miles (18,114.11 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,232.14 miles (18,076.34 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,216.08 miles (18,050.49 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 11,207.30 miles (18,036.35 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 11,160.65 miles (17,961.29 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 11,154.56 miles (17,951.47 km) WSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 7 | 11,148.08 miles (17,941.05 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 11,137.67 miles (17,924.30 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 9 | 11,121.35 miles (17,898.04 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 10 | 11,110.39 miles (17,880.40 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 11,055.94 miles (17,792.77 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 11,020.90 miles (17,736.37 km) SW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 11,016.66 miles (17,729.55 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 11,005.06 miles (17,710.88 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,955.55 miles (17,631.20 km) SW | 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 | |