Nonstop flight route between Fort Sill, Oklahoma, United States and Bellaire, Michigan, United States:
Departure Airport:
(34°38'58"N by 98°24'7"W)
Arrival Airport:
(44°59'18"N by 85°11'53"W)
Distance from FSI to ACB:
998.14 miles (1,606.34 km)
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Jump to:
- About this route
- FSI Airport Information
- ACB Airport Information
- Facts about FSI
- Facts about ACB
- 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 ACB
- List of Nearest Airports to ACB
- Map of Furthest Airports from ACB
- List of Furthest Airports from ACB
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Antrim County Airport (ACB), Bellaire, Michigan, United States would travel a Great Circle distance of 998 miles (or 1,606 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 Antrim County 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: | ACB / KACB |
| Airport Name: | Antrim County Airport |
| Location: | Bellaire, Michigan, United States |
| GPS Coordinates: | 44°59'18"N by 85°11'53"W |
| Area Served: | Bellaire, Michigan |
| Operator/Owner: | Antrim County |
| Airport Type: | Public |
| Elevation: | 623 feet (190 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from ACB |
| More Information: | ACB Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
- 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.
- Air Service/Corps units assigned to Post Field between 1919 and 1941
- 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.
- 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.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
Facts about Antrim County Airport (ACB):
- The closest airport to Antrim County Airport (ACB) is Gaylord Regional Airport (GLR), which is located 24 miles (39 kilometers) E of ACB.
- The furthest airport from Antrim County Airport (ACB) is Margaret River Airport (MGV), which is located 11,118 miles (17,892 kilometers) away in Margaret River, Western Australia, Australia.
- Because of Antrim County Airport's relatively low elevation of 623 feet, planes can take off or land at Antrim County 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.
- Antrim County Airport (ACB) currently has only 1 runway.
| 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 | 24.24 miles (39.01 km) E | Gaylord Regional Airport (GLR) | Gaylord, Michigan, United States | |
| 2 | 25.39 miles (40.86 km) SW | Cherry Capital Airport (TVC) | Traverse City, Michigan, United States | |
| 3 | 44.72 miles (71.96 km) NNE | Pellston Regional Airport of Emmet County (PLN) | Pellston, Michigan, United States | |
| 4 | 50.46 miles (81.21 km) SSW | Wexford County Airport (CAD) | Cadillac, Michigan, United States | |
| 5 | 50.59 miles (81.41 km) SSE | Roscommon County - Blodgett Memorial Airport (HTL) | Houghton Lake, Michigan, United States | |
| 6 | 66.38 miles (106.84 km) NNE | Mackinac Island Airport (MCD) | Mackinac Island, Michigan, United States | |
| 7 | 71.46 miles (115.00 km) SW | Manistee County Blacker Airport (MBL) | Manistee, Michigan, United States | |
| 8 | 76.84 miles (123.66 km) SSW | Nartron Field (RCT) | Reed City, Michigan, United States | |
| 9 | 78.86 miles (126.92 km) SSE | Gladwin Zettel Memorial Airport (GDW) | Gladwin, Michigan, United States | |
| 10 | 80.22 miles (129.10 km) E | Alpena County Regional Airport (APN) | Alpena, Michigan, United States | |
| 11 | 88.77 miles (142.87 km) S | Roben-Hood Airport (WBR) | Big Rapids, Michigan, United States | |
| 12 | 92.64 miles (149.08 km) SW | Mason County Airport (LDM) | Ludington, Michigan, United States | |
| 13 | 94.00 miles (151.28 km) NNE | Chippewa County International Airport (CIU) | Sault Ste Marie, Michigan, United States | |
| 14 | 94.00 miles (151.28 km) NNE | Kincheloe Air Force Base (INR) | Sault Ste. Marie, Michigan, United States | |
| 15 | 96.03 miles (154.54 km) ESE | Oscoda-Wurtsmith Airport (OSC) | Oscoda, Michigan, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,117.61 miles (17,892.01 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,093.58 miles (17,853.34 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,087.42 miles (17,843.43 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 11,067.46 miles (17,811.31 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 11,041.82 miles (17,770.05 km) WSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 6 | 11,008.13 miles (17,715.82 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 7 | 10,998.29 miles (17,699.99 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 10,995.62 miles (17,695.70 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 9 | 10,987.10 miles (17,681.97 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 10 | 10,942.26 miles (17,609.82 km) SW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 10,876.21 miles (17,503.53 km) SW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 10,846.78 miles (17,456.16 km) SW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 13 | 10,832.56 miles (17,433.27 km) SW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 14 | 10,827.97 miles (17,425.88 km) SW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,806.16 miles (17,390.78 km) WSW | Esperance Airport (EPR) | Esperance, Australia | |