Nonstop flight route between Fort Sill, Oklahoma, United States and Ludington, Michigan, United States:
Departure Airport:
(34°38'58"N by 98°24'7"W)
Arrival Airport:
(43°57'44"N by 86°24'28"W)
Distance from FSI to LDM:
906.59 miles (1,459.01 km)
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Jump to:
- About this route
- FSI Airport Information
- LDM Airport Information
- Facts about FSI
- Facts about LDM
- 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 LDM
- List of Nearest Airports to LDM
- Map of Furthest Airports from LDM
- List of Furthest Airports from LDM
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Mason County Airport (LDM), Ludington, Michigan, United States would travel a Great Circle distance of 907 miles (or 1,459 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 Mason 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: | LDM / KLDM |
| Airport Name: | Mason County Airport |
| Location: | Ludington, Michigan, United States |
| GPS Coordinates: | 43°57'44"N by 86°24'28"W |
| Area Served: | Ludington |
| Operator/Owner: | Mason County |
| Airport Type: | Public |
| Elevation: | 646 feet (197 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from LDM |
| More Information: | LDM 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 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.
- 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.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- Post Field served as a base for flight training for the Air Service.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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 Mason County Airport (LDM):
- The furthest airport from Mason County Airport (LDM) is Margaret River Airport (MGV), which is located 11,095 miles (17,856 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Mason County Airport (LDM) is Manistee County Blacker Airport (MBL), which is located 23 miles (37 kilometers) NNE of LDM.
- Because of Mason County Airport's relatively low elevation of 646 feet, planes can take off or land at Mason 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.
- Mason County Airport (LDM) has 2 runways.
| 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 | 22.86 miles (36.78 km) NNE | Manistee County Blacker Airport (MBL) | Manistee, Michigan, United States | |
| 2 | 44.55 miles (71.70 km) E | Nartron Field (RCT) | Reed City, Michigan, United States | |
| 3 | 47.99 miles (77.23 km) ESE | Roben-Hood Airport (WBR) | Big Rapids, Michigan, United States | |
| 4 | 53.60 miles (86.26 km) ENE | Wexford County Airport (CAD) | Cadillac, Michigan, United States | |
| 5 | 55.58 miles (89.45 km) S | Muskegon County Airport (MKG) | Muskegon, Michigan, United States | |
| 6 | 64.25 miles (103.39 km) W | Manitowoc County Airport (MTW) | Manitowoc, Wisconsin, United States | |
| 7 | 67.54 miles (108.70 km) NE | Cherry Capital Airport (TVC) | Traverse City, Michigan, United States | |
| 8 | 73.15 miles (117.72 km) W | Sheboygan County Memorial Airport (SBM) | Sheboygan, Wisconsin, United States | |
| 9 | 78.81 miles (126.83 km) NW | Door County Cherryland Airport (SUE) | Sturgeon Bay, Wisconsin, United States | |
| 10 | 81.55 miles (131.24 km) S | Park Township Airport (HLM) | Holland, Michigan, United States | |
| 11 | 86.57 miles (139.32 km) ESE | Mount Pleasant Municipal Airport (MOP) | Mount Pleasant, Michigan, United States | |
| 12 | 86.94 miles (139.91 km) SSE | Gerald R. Ford International Airport (GRR) | Grand Rapids, Michigan, United States | |
| 13 | 90.35 miles (145.40 km) ENE | Roscommon County - Blodgett Memorial Airport (HTL) | Houghton Lake, Michigan, United States | |
| 14 | 92.58 miles (148.99 km) WNW | Austin Straubel International Airport (GRB) | Green Bay, Wisconsin, United States | |
| 15 | 92.64 miles (149.08 km) NE | Antrim County Airport (ACB) | Bellaire, Michigan, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,095.20 miles (17,855.95 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,071.31 miles (17,817.49 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,061.27 miles (17,801.34 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 11,045.60 miles (17,776.13 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 11,009.59 miles (17,718.18 km) WSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 6 | 10,991.27 miles (17,688.70 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 7 | 10,980.26 miles (17,670.98 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 10,969.36 miles (17,653.44 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 9 | 10,968.05 miles (17,651.32 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 10 | 10,932.03 miles (17,593.36 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 10,871.25 miles (17,495.54 km) SW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 10,837.13 miles (17,440.63 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 13 | 10,831.77 miles (17,432.00 km) SW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 14 | 10,821.65 miles (17,415.71 km) SW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,770.44 miles (17,333.31 km) WSW | Esperance Airport (EPR) | Esperance, Australia | |