Nonstop flight route between Fort Sill, Oklahoma, United States and British Columbia, Canada:
Departure Airport:
(34°38'58"N by 98°24'7"W)
Arrival Airport:
(50°34'55"N by 126°54'56"W)
Distance from FSI to YAL:
1,801.54 miles (2,899.29 km)
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Jump to:
- About this route
- FSI Airport Information
- YAL Airport Information
- Facts about FSI
- Facts about YAL
- 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 YAL
- List of Nearest Airports to YAL
- Map of Furthest Airports from YAL
- List of Furthest Airports from YAL
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Alert Bay Airport (YAL), British Columbia, Canada would travel a Great Circle distance of 1,802 miles (or 2,899 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 Alert Bay 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: | YAL / CYAL |
| Airport Name: | Alert Bay Airport |
| Location: | British Columbia, Canada |
| GPS Coordinates: | 50°34'55"N by 126°54'56"W |
| Operator/Owner: | Corporation of Village of Alert Bay |
| Airport Type: | Public |
| Elevation: | 240 feet (73 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from YAL |
| More Information: | YAL Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- The first Army aviation at Fort Sill began on 26 July 1915 when eight Curtiss JN-3 airplanes of the 1st Aero Squadron arrived from Rockwell Field, California.
- 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.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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.
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
- 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 Alert Bay Airport (YAL):
- Because of Alert Bay Airport's relatively low elevation of 240 feet, planes can take off or land at Alert Bay 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.
- The furthest airport from Alert Bay Airport (YAL) is East London Airport (ELS), which is located 10,675 miles (17,179 kilometers) away in East London, South Africa.
- The closest airport to Alert Bay Airport (YAL) is Port McNeill Airport (YMP), which is located only 5 miles (8 kilometers) W of YAL.
- Alert Bay Airport (YAL) 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 | 4.98 miles (8.02 km) W | Port McNeill Airport (YMP) | Port McNeill, British Columbia, Canada | |
| 2 | 19.53 miles (31.43 km) WNW | Port Hardy Airport (YZT) | Port Hardy, British Columbia, Canada | |
| 3 | 46.96 miles (75.58 km) SSE | Tahsis Water Aerodrome (ZTS) | Tahsis, British Columbia, Canada | |
| 4 | 79.36 miles (127.72 km) E | Big Bay Water Aerodrome (YRR) | Stuart Island, British Columbia, Canada | |
| 5 | 82.17 miles (132.24 km) ESE | Campbell River Water Aerodrome (YHH) | Campbell River, British Columbia, Canada | |
| 6 | 84.61 miles (136.16 km) ESE | Campbell River Airport (YBL) | Campbell River, British Columbia, Canada | |
| 7 | 93.56 miles (150.58 km) ESE | Cortes Island Aerodrome (YCF) | Cortes Island, British Columbia, Canada | |
| 8 | 105.95 miles (170.52 km) SE | Courtenay Airpark (YCA) | Courtenay, British Columbia, Canada | |
| 9 | 108.14 miles (174.03 km) ESE | CFB Comox (YQQ) | Comox, British Columbia, Canada | |
| 10 | 108.28 miles (174.26 km) SSE | Tofino Harbour Water Aerodrome (YTP) | Tofino, British Columbia, Canada | |
| 11 | 115.48 miles (185.85 km) SSE | Tofino/Long Beach Airport (YAZ) | Tofino, British Columbia, Canada | |
| 12 | 118.64 miles (190.94 km) ESE | Powell River Airport (YPW) | Powell River, British Columbia, Canada | |
| 13 | 119.45 miles (192.24 km) NNW | Bella Bella/Shearwater Water Aerodrome (YSX) | Bella Bella, British Columbia, Canada | |
| 14 | 122.63 miles (197.35 km) ESE | Texada/Gillies Bay Airport (YGB) | Texada Island, British Columbia, Canada | |
| 15 | 122.99 miles (197.93 km) NNW | Bella Bella (Campbell Island) Airport (ZEL) | Bella Bella, British Columbia, Canada | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,674.66 miles (17,179.15 km) SE | East London Airport (ELS) | East London, South Africa | |
| 2 | 10,667.49 miles (17,167.61 km) ESE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 3 | 10,641.92 miles (17,126.46 km) SSE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 4 | 10,641.89 miles (17,126.41 km) SE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 5 | 10,641.82 miles (17,126.31 km) ESE | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 6 | 10,623.76 miles (17,097.25 km) SE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 7 | 10,594.79 miles (17,050.61 km) SE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 8 | 10,593.78 miles (17,048.99 km) SSE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 9 | 10,573.73 miles (17,016.73 km) SE | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 10 | 10,573.53 miles (17,016.41 km) SE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |
| 11 | 10,535.06 miles (16,954.49 km) SE | Hluhluwe Airport (HLW) | Hluhluwe, South Africa | |
| 12 | 10,529.91 miles (16,946.20 km) SE | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 13 | 10,516.65 miles (16,924.87 km) ESE | George Airport (GRJ) | George, South Africa | |
| 14 | 10,512.05 miles (16,917.46 km) SE | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 15 | 10,509.05 miles (16,912.63 km) SE | Mokhotlong Airport (MKH) | Mokhotlong, Lesotho | |