Nonstop flight route between Fort Sill, Oklahoma, United States and Lyndonville, Vermont, United States:
Departure Airport:
(34°38'58"N by 98°24'7"W)
Arrival Airport:
(44°34'9"N by 72°1'5"W)
Distance from FSI to LLX:
1,553.31 miles (2,499.80 km)
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- About this route
- FSI Airport Information
- LLX Airport Information
- Facts about FSI
- Facts about LLX
- 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 LLX
- List of Nearest Airports to LLX
- Map of Furthest Airports from LLX
- List of Furthest Airports from LLX
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Caledonia County Airport (LLX), Lyndonville, Vermont, United States would travel a Great Circle distance of 1,553 miles (or 2,500 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 Caledonia 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: | LLX / KCDA |
| Airport Names: |
|
| Location: | Lyndonville, Vermont, United States |
| GPS Coordinates: | 44°34'9"N by 72°1'5"W |
| Area Served: | Caledonia County |
| Operator/Owner: | State of Vermont |
| Airport Type: | Public |
| Elevation: | 1188 feet (362 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from LLX |
| More Information: | LLX Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- Fort Sill has embarked on a new plan to support the museum in providing a more dynamic learning experience for the 200,000 military and civilian personnel who visit each year.
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- Henry Post Army Airfield was the first home of all Army Aviation Training after World War II before moving to Fort Rucker, Alabama in 1954.
- 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.
- Post Field served as a base for flight training for the Air Service.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
- 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 Caledonia County Airport (LLX):
- Caledonia County Airport (LLX) currently has only 1 runway.
- In addition to being known as "Caledonia County Airport", another name for LLX is "CDA".
- The furthest airport from Caledonia County Airport (LLX) is Margaret River Airport (MGV), which is located 11,610 miles (18,684 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Caledonia County Airport (LLX) is Newport State Airport (EFK), which is located 24 miles (39 kilometers) NNW of LLX.
| 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 | 24.40 miles (39.27 km) NNW | Newport State Airport (EFK) | Newport, Vermont, United States | |
| 2 | 27.19 miles (43.76 km) ESE | Mount Washington Regional Airport (HIE) | Whitefield, New Hampshire, United States | |
| 3 | 29.43 miles (47.37 km) W | Morrisville–Stowe State Airport (MVL) | Morrisville, Vermont, United States | |
| 4 | 36.88 miles (59.35 km) SW | Edward F. Knapp State Airport (MPV) | Barre/Montpelier, Vermont, United States | |
| 5 | 41.46 miles (66.72 km) E | Berlin Regional Airport (BML) | Berlin, New Hampshire, United States | |
| 6 | 56.33 miles (90.65 km) W | Burlington International Airport (BTV) | Burlington, Vermont, United States | |
| 7 | 61.16 miles (98.42 km) NW | Roland-Désourdy Airport (ZBM) | Bromont, Quebec, Canada | |
| 8 | 62.16 miles (100.03 km) NNE | Sherbrooke Airport (YSC) | Sherbrooke, Quebec, Canada | |
| 9 | 66.32 miles (106.73 km) SE | Eastern Slopes Regional Airport (FRY) | Fryeburg, Maine, United States | |
| 10 | 66.69 miles (107.32 km) SSW | Lebanon Municipal Airport (LEB) | Lebanon, New Hampshire, United States | |
| 11 | 71.54 miles (115.14 km) W | Plattsburgh International Airport (PBG) | Plattsburgh, New York, United States | |
| 12 | 74.52 miles (119.93 km) W | Clinton County Airport (PLB) | Plattsburgh, New York, United States | |
| 13 | 74.99 miles (120.69 km) SSE | Laconia Municipal Airport (LCI) | Laconia, New Hampshire, United States | |
| 14 | 79.57 miles (128.05 km) NW | Saint-Jean Airport (YJN) | Saint-Jean-sur-Richelieu, Quebec, Canada | |
| 15 | 82.04 miles (132.04 km) S | Parlin Field (NWH) | Newport, New Hampshire, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,609.70 miles (18,683.96 km) SSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,603.25 miles (18,673.58 km) SW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 3 | 11,592.67 miles (18,656.55 km) SW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 4 | 11,587.16 miles (18,647.67 km) SSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 5 | 11,561.00 miles (18,605.58 km) SSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 6 | 11,525.69 miles (18,548.75 km) SW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 7 | 11,477.96 miles (18,471.95 km) SSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 8 | 11,475.74 miles (18,468.37 km) SSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 9 | 11,463.77 miles (18,449.11 km) SSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 10 | 11,383.27 miles (18,319.55 km) SW | Esperance Airport (EPR) | Esperance, Australia | |
| 11 | 11,378.54 miles (18,311.94 km) SSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 12 | 11,287.21 miles (18,164.96 km) SSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 13 | 11,286.07 miles (18,163.13 km) SSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 14 | 11,255.38 miles (18,113.73 km) SW | Windarling Airport (WRN) | Windarling, Australia | |
| 15 | 11,254.47 miles (18,112.27 km) SW | Kambalda Airport (KDB) | Kambalda, Western Australia, Australia | |