Nonstop flight route between Champaign-Urbana, Illinois, United States and Fort Sill, Oklahoma, United States:
Departure Airport:
(40°2'21"N by 88°16'41"W)
Arrival Airport:
(34°38'58"N by 98°24'7"W)
Distance from CMI to FSI:
668.58 miles (1,075.98 km)
Share this route:
Jump to:
- About this route
- CMI Airport Information
- FSI Airport Information
- Facts about CMI
- Facts about FSI
- Map of Nearest Airports to CMI
- List of Nearest Airports to CMI
- Map of Furthest Airports from CMI
- List of Furthest Airports from CMI
- 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 University of Illinois Willard Airport (CMI), Champaign-Urbana, Illinois, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 669 miles (or 1,076 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 University of Illinois Willard 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: | CMI / KCMI |
| Airport Name: | University of Illinois Willard Airport |
| Location: | Champaign-Urbana, Illinois, United States |
| GPS Coordinates: | 40°2'21"N by 88°16'41"W |
| Area Served: | Champaign-Urbana, Illinois |
| Operator/Owner: | University of Illinois at Urbana-Champaign |
| Airport Type: | Public |
| Elevation: | 754 feet (230 meters) |
| # of Runways: | 4 |
| View all routes: | Routes from CMI |
| More Information: | CMI 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 University of Illinois Willard Airport (CMI):
- The airport was dedicated on 26 October 1945.
- Because of University of Illinois Willard Airport's relatively low elevation of 754 feet, planes can take off or land at University of Illinois Willard 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.
- Delta Air Lines dropped Willard Airport on August 31, 2010.Vision Airlines also ceased service to Willard Airport on January 6, 2012 after 3 weeks of service.
- The closest airport to University of Illinois Willard Airport (CMI) is Decatur Airport (DEC), which is located 34 miles (55 kilometers) WSW of CMI.
- The furthest airport from University of Illinois Willard Airport (CMI) is Margaret River Airport (MGV), which is located 11,084 miles (17,838 kilometers) away in Margaret River, Western Australia, Australia.
- The terminal has five gates.
- University of Illinois Willard Airport (CMI) has 4 runways.
Facts about Henry Post Army Airfield (FSI):
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
- Henry Post Army Airfield is a military use airport located at Fort Sill in Comanche County, Oklahoma, United States.
- 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 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.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 34.19 miles (55.02 km) WSW | Decatur Airport (DEC) | Decatur, Illinois, United States |     |
| 2 | 37.72 miles (60.70 km) ENE | Vermilion Regional Airport (DNV) | Danville, Illinois, United States | |
| 3 | 38.77 miles (62.39 km) S | Coles County Memorial Airport (MTO) | Mattoon/Charleston, Illinois, United States | |
| 4 | 45.24 miles (72.81 km) NW | Central Illinois Regional Airport at Bloomington-Normal (BMI) | Bloomington, Illinois, United States | |
| 5 | 65.63 miles (105.63 km) SE | Terre Haute International Airport Hulman Field (HUF) | Terre Haute, Indiana, United States | |
| 6 | 66.86 miles (107.60 km) NE | Kentland Municipal Airport (KKT) | Kentland, Indiana, United States | |
| 7 | 74.83 miles (120.43 km) NNE | Greater Kankakee Airport (IKK) | Kankakee, Illinois, United States | |
| 8 | 75.30 miles (121.18 km) ENE | Purdue University Airport (LAF) | West Lafayette, Indiana, United States | |
| 9 | 75.38 miles (121.31 km) W | Abraham Lincoln Capital Airport (SPI) | Springfield, Illinois, United States | |
| 10 | 77.67 miles (124.99 km) SE | Sullivan County Airport (SIV) | Sullivan, Indiana, United States | |
| 11 | 85.17 miles (137.07 km) NE | Jasper County Airport (RNZ) | Rensselaer, Indiana, United States | |
| 12 | 86.13 miles (138.61 km) WNW | General Wayne A. Downing Peoria International Airport (PIA) | Peoria, Illinois, United States | |
| 13 | 91.98 miles (148.02 km) SSE | Ed-Air Airport (OTN) | Oaktown, Indiana, United States | |
| 14 | 95.13 miles (153.09 km) SSE | Lawrenceville–Vincennes International Airport (LWV) | Lawrenceville, Illinois, United States | |
| 15 | 100.87 miles (162.34 km) SSE | O'Neal Airport (OEA) | Vincennes, Indiana, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,083.92 miles (17,837.80 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,061.18 miles (17,801.20 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,039.25 miles (17,765.90 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 11,037.54 miles (17,763.16 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 11,000.46 miles (17,703.48 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 10,986.07 miles (17,680.33 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 7 | 10,976.39 miles (17,664.74 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 8 | 10,969.73 miles (17,654.02 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 9 | 10,963.47 miles (17,643.94 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 10 | 10,944.07 miles (17,612.72 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 11 | 10,920.51 miles (17,574.81 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 10,894.80 miles (17,533.44 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 10,872.65 miles (17,497.79 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 10,867.84 miles (17,490.04 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,844.34 miles (17,452.22 km) WSW | 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 | |