Nonstop flight route between Fort Sill, Oklahoma, United States and Lac La Biche, Alberta, Canada:
Departure Airport:
(34°38'58"N by 98°24'7"W)
Arrival Airport:
(54°46'13"N by 112°1'54"W)
Distance from FSI to YLB:
1,536.62 miles (2,472.95 km)
Share this route:
Jump to:
- About this route
- FSI Airport Information
- YLB Airport Information
- Facts about FSI
- Facts about YLB
- 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 YLB
- List of Nearest Airports to YLB
- Map of Furthest Airports from YLB
- List of Furthest Airports from YLB
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Lac La Biche Airport (YLB), Lac La Biche, Alberta, Canada would travel a Great Circle distance of 1,537 miles (or 2,473 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 Lac La Biche 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: | YLB / CYLB |
| Airport Name: | Lac La Biche Airport |
| Location: | Lac La Biche, Alberta, Canada |
| GPS Coordinates: | 54°46'13"N by 112°1'54"W |
| Operator/Owner: | County of Lac La Biche |
| Airport Type: | Public |
| Elevation: | 1884 feet (574 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from YLB |
| More Information: | YLB 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 Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- 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.
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
- 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.
- 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.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
Facts about Lac La Biche Airport (YLB):
- The furthest airport from Lac La Biche Airport (YLB) is Tôlanaro Airport (FTU), which is located 10,120 miles (16,287 kilometers) away in Tôlanaro, Madagascar.
- The closest airport to Lac La Biche Airport (YLB) is St. Paul Aerodrome (ZSP), which is located 60 miles (96 kilometers) SSE of YLB.
- Lac La Biche Airport (YLB) 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 | 59.76 miles (96.17 km) SSE | St. Paul Aerodrome (ZSP) | St. Paul, Alberta, Canada | |
| 2 | 60.92 miles (98.04 km) ESE | Bonnyville Airport (YBY) | Bonnyville, Alberta, Canada | |
| 3 | 74.55 miles (119.98 km) ESE | CFB Cold Lake (YOD) | Cold Lake, Alberta, Canada | |
| 4 | 95.96 miles (154.44 km) SW | CFB Edmonton (YED) | Edmonton, Alberta, Canada | |
| 5 | 114.56 miles (184.36 km) WNW | Slave Lake Airport (YZH) | Slave Lake, Alberta, Canada | |
| 6 | 118.84 miles (191.25 km) SSW | Edmonton International Airport (YEG) | Edmonton, Alberta, Canada | |
| 7 | 128.36 miles (206.58 km) SE | Lloydminster Airport (YLL) | Lloydminster, Alberta/Saskatchewan, Canada | |
| 8 | 133.85 miles (215.42 km) NNE | Fort McMurray International Airport (YMM) | Fort McMurray, Alberta, Canada | |
| 9 | 144.59 miles (232.70 km) SSE | Wainwright Aerodrome (YWV) | Wainwright, Alberta, Canada | |
| 10 | 147.82 miles (237.90 km) ESE | Meadow Lake Airport (YLJ) | Meadow Lake, Saskatchewan, Canada | |
| 11 | 156.88 miles (252.48 km) WSW | Whitecourt Airport (YZU) | Whitecourt, Alberta, Canada | |
| 12 | 157.90 miles (254.11 km) SW | Drayton Valley Industrial Airport (YDC) | Drayton Valley, Alberta, Canada | |
| 13 | 160.24 miles (257.88 km) ENE | Buffalo Narrows Airport (YVT) | Buffalo Narrows, Saskatchewan, Canada | |
| 14 | 173.94 miles (279.93 km) SSE | Vermilion Airport (YVG) | Vermilion, Alberta, Canada | |
| 15 | 187.78 miles (302.21 km) S | Coronation Airport (YCT) | Coronation, Alberta, Canada | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,120.11 miles (16,286.69 km) SE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 2 | 10,044.53 miles (16,165.06 km) SE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 3 | 10,035.17 miles (16,150.00 km) SSE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 4 | 10,007.34 miles (16,105.21 km) SSE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 5 | 10,005.57 miles (16,102.36 km) S | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 6 | 10,003.83 miles (16,099.56 km) SSE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 7 | 9,989.78 miles (16,076.96 km) ESE | East London Airport (ELS) | East London, South Africa | |
| 8 | 9,981.94 miles (16,064.33 km) ESE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 9 | 9,964.10 miles (16,035.62 km) ESE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 10 | 9,956.40 miles (16,023.23 km) ESE | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 11 | 9,941.44 miles (15,999.15 km) ESE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 12 | 9,922.01 miles (15,967.89 km) ESE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 13 | 9,906.62 miles (15,943.12 km) ESE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |
| 14 | 9,902.77 miles (15,936.93 km) SSE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 15 | 9,898.72 miles (15,930.41 km) ESE | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |