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):
- 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 field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- With the end of World War I, in October 1919 Post Field was deactivated as an active duty airfield in accordance with sharply reduced military budgets, and a small caretaker unit was assigned to the facility for administrative reasons to support the balloon school/company.
- 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.
- 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.
Facts about Caledonia County Airport (LLX):
- 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.
- Caledonia County Airport (LLX) currently has only 1 runway.
- Caledonia County Airport covers an area of 78 acres at an elevation of 1,188 feet above mean sea level.
- 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 | |