Nonstop flight route between Fort Sill, Oklahoma, United States and Ilorin, Nigeria:
Departure Airport:
(34°38'58"N by 98°24'7"W)
Arrival Airport:
(8°26'26"N by 4°29'39"E)
Distance from FSI to ILR:
6,607.64 miles (10,633.93 km)
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Jump to:
- About this route
- FSI Airport Information
- ILR Airport Information
- Facts about FSI
- Facts about ILR
- 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 ILR
- List of Nearest Airports to ILR
- Map of Furthest Airports from ILR
- List of Furthest Airports from ILR
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Ilorin International Airport (ILR), Ilorin, Nigeria would travel a Great Circle distance of 6,608 miles (or 10,634 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 large distance between Henry Post Army Airfield and Ilorin International Airport, the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between Henry Post Army Airfield and Ilorin International Airport. You'll see that it will travel the same route of the red line on this map!
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: | ILR / DNIL |
| Airport Name: | Ilorin International Airport |
| Location: | Ilorin, Nigeria |
| GPS Coordinates: | 8°26'26"N by 4°29'39"E |
| Area Served: | Ilorin, Nigeria |
| Airport Type: | Public |
| Elevation: | 1126 feet (343 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from ILR |
| More Information: | ILR Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- The Fort Sill Army Radar Approach Control is the Army's Second busiest Air Traffic Control Facility, providing Radar Approach Control service to Henry Post Army Air Field, Lawton/Fort Sill Regional Airport, Duncan/Haliburton Airport and many smaller airports in the area.
- 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 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.
- 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.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
Facts about Ilorin International Airport (ILR):
- Ilorin International Airport (ILR) currently has only 1 runway.
- The furthest airport from Ilorin International Airport (ILR) is Wallis Island (WLS), which is nearly antipodal to Ilorin International Airport (meaning Ilorin International Airport is almost on the exact opposite side of the Earth from Wallis Island), and is located 12,100 miles (19,473 kilometers) away in Wallis and Futuna Islands.
- The closest airport to Ilorin International Airport (ILR) is Ibadan Airport (IBA), which is located 82 miles (133 kilometers) SSW of ILR.
| 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 | 82.45 miles (132.70 km) SSW | Ibadan Airport (IBA) | Ibadan, Nigeria | |
| 2 | 99.25 miles (159.73 km) SE | Akure Airport (AKR) | Akure, Nigeria | |
| 3 | 141.85 miles (228.28 km) WSW | Savé Airport (SVF) | Savé, Benin | |
| 4 | 143.42 miles (230.82 km) WNW | Parakou Airport (PKO) | Parakou, Benin | |
| 5 | 151.77 miles (244.25 km) SSW | Murtala Muhammed International Airport (LOS) | Lagos, Nigeria | |
| 6 | 158.22 miles (254.63 km) ENE | Minna Airport (MXJ) | Minna, Nigeria | |
| 7 | 165.11 miles (265.72 km) SSE | Benin Airport (BNI) | Benin City, Nigeria | |
| 8 | 193.09 miles (310.75 km) ENE | Nnamdi Azikiwe International Airport (ABV) | Abuja, Nigeria | |
| 9 | 204.05 miles (328.38 km) SW | Cotonou Cadjehoun Airport (COO) | Cotonou, Benin | |
| 10 | 213.25 miles (343.19 km) WNW | Djougou Airport (DJA) | Djougou, Benin | |
| 11 | 214.24 miles (344.78 km) SE | Asaba International Airport (ABB) | Asaba, Delta, Niger | |
| 12 | 214.73 miles (345.58 km) NNW | Kandi Airport (KDC) | Kandi, Benin | |
| 13 | 247.66 miles (398.57 km) NE | Kaduna Airport (KAD) | Kaduna, Nigeria | |
| 14 | 249.57 miles (401.65 km) WNW | Niamtougou International Airport (LRL) | Niamtougou, Togo | |
| 15 | 250.24 miles (402.71 km) ESE | Akanu Ibiam International Airport ( AIIA ) (ENU) | Enugu, Nigeria | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,100.01 miles (19,473.03 km) S | Wallis Island (WLS) | Wallis and Futuna Islands | |
| 2 | 12,074.70 miles (19,432.30 km) E | Funafuti International Airport (FUN) | Funafuti, Tuvalu | |
| 3 | 12,036.15 miles (19,370.26 km) SSW | Asau Airport (AAU) | Asau, Samoa | |
| 4 | 12,009.46 miles (19,327.30 km) SSW | Maota (Salelologa) Airport (MXS) | Maota, Samoa | |
| 5 | 11,995.67 miles (19,305.12 km) SSE | Aéroport de Futuna - Pointe-Vele Pointe Vele Airport (FUT) | Futuna Island, Wallis and Futuna Islands | |
| 6 | 11,995.42 miles (19,304.72 km) SSW | Faleolo International Airport (APW) | Apia, Upolu Island, Samoa | |
| 7 | 11,984.41 miles (19,286.99 km) SW | Fagali'i Airport (FGI) | Apia, Samoa | |
| 8 | 11,965.86 miles (19,257.14 km) SW | Canton Island Airport (CIS) | Canton Island, Kiribati | |
| 9 | 11,944.05 miles (19,222.04 km) S | Mata'aho Airport (NFO) | Niuafo'ou, Tonga | |
| 10 | 11,918.54 miles (19,180.98 km) SW | Pago Pago International Airport (PPG) | Pago Pago, American Samoa | |
| 11 | 11,876.74 miles (19,113.72 km) SW | Ofu Airport (OFU) | Ofu, American Samoa | |
| 12 | 11,866.96 miles (19,097.97 km) SW | Tau Airport (TAV) | Tau, American Samoa | |
| 13 | 11,863.35 miles (19,092.16 km) SW | Fitiuta Airport (FTI) | Fiti‘uta, American Samoa, United States | |
| 14 | 11,782.39 miles (18,961.88 km) SSE | Labasa Airport (LBS) | Labasa, Fiji | |
| 15 | 11,772.31 miles (18,945.64 km) SE | Arorae Island Airport (AIS) | Arorae Island, Kiribati | |