Nonstop flight route between Fort Sill, Oklahoma, United States and Armstrong, Thunder Bay District, Ontario, Canada:
Departure Airport:
(34°38'58"N by 98°24'7"W)
Arrival Airport:
(50°17'25"N by 88°54'34"W)
Distance from FSI to YYW:
1,181.74 miles (1,901.81 km)
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Jump to:
- About this route
- FSI Airport Information
- YYW Airport Information
- Facts about FSI
- Facts about YYW
- 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 YYW
- List of Nearest Airports to YYW
- Map of Furthest Airports from YYW
- List of Furthest Airports from YYW
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Armstrong Airport (YYW), Armstrong, Thunder Bay District, Ontario, Canada would travel a Great Circle distance of 1,182 miles (or 1,902 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 Armstrong 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: | YYW / CYYW |
| Airport Name: | Armstrong Airport |
| Location: | Armstrong, Thunder Bay District, Ontario, Canada |
| GPS Coordinates: | 50°17'25"N by 88°54'34"W |
| Operator/Owner: | Government of Ontario |
| Airport Type: | Public |
| Elevation: | 1058 feet (322 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from YYW |
| More Information: | YYW Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- 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.
- 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.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- 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.
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
Facts about Armstrong Airport (YYW):
- The closest airport to Armstrong Airport (YYW) is Geraldton (Greenstone Regional) Airport (YGQ), which is located 94 miles (152 kilometers) ESE of YYW.
- Armstrong Airport (YYW) has 2 runways.
- The furthest airport from Armstrong Airport (YYW) is Margaret River Airport (MGV), which is located 10,780 miles (17,348 kilometers) away in Margaret River, Western Australia, Australia.
| 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 | 94.35 miles (151.84 km) ESE | Geraldton (Greenstone Regional) Airport (YGQ) | Geraldton, Ontario, Canada | |
| 2 | 98.04 miles (157.78 km) E | Nakina Airport (YQN) | Nakina, Ontario, Canada | |
| 3 | 98.06 miles (157.81 km) NW | Pickle Lake Airport (YPL) | Pickle Lake, Ontario, Canada | |
| 4 | 98.10 miles (157.88 km) NNE | Fort Hope Airport (YFH) | Fort Hope, Ontario, Canada | |
| 5 | 130.37 miles (209.81 km) SE | Terrace Bay Airport (YTJ) | Terrace Bay, Ontario, Canada | |
| 6 | 133.04 miles (214.11 km) W | Sioux Lookout Airport (YXL) | Sioux Lookout, Ontario, Canada | |
| 7 | 133.84 miles (215.39 km) S | Thunder Bay International Airport (YQT) | Thunder Bay, Ontario, Canada | |
| 8 | 138.24 miles (222.47 km) NNE | Lansdowne House Airport (YLH) | Lansdowne House, Ontario, Canada | |
| 9 | 138.48 miles (222.86 km) WSW | Ignace Municipal Airport (ZUC) | Ignace, Ontario, Canada | |
| 10 | 156.33 miles (251.58 km) SE | Marathon Aerodrome (YSP) | Marathon, Ontario, Canada | |
| 11 | 159.75 miles (257.09 km) ESE | Manitouwadge Airport (YMG) | Manitouwadge, Ontario, Canada | |
| 12 | 160.96 miles (259.03 km) NW | Cat Lake Airport (YAC) | Cat Lake, Ontario, Canada | |
| 13 | 161.08 miles (259.23 km) SW | Atikokan Municipal Aerodrome (YIB) | Atikokan, Ontario, Canada | |
| 14 | 161.44 miles (259.82 km) NE | Ogoki Post Airport (YOG) | Ogoki Post, Ontario, Canada | |
| 15 | 172.99 miles (278.39 km) W | Dryden Regional Airport (YHD) | Dryden, Ontario, Canada | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,779.51 miles (17,347.89 km) SW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 10,758.53 miles (17,314.13 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 3 | 10,755.59 miles (17,309.40 km) SW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 4 | 10,729.37 miles (17,267.20 km) WSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 5 | 10,728.97 miles (17,266.56 km) SW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 6 | 10,671.87 miles (17,174.67 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 7 | 10,659.78 miles (17,155.21 km) SW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 8 | 10,652.50 miles (17,143.50 km) SW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 9 | 10,640.84 miles (17,124.73 km) SW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 10 | 10,581.89 miles (17,029.85 km) SW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 10,507.97 miles (16,910.90 km) WSW | Esperance Airport (EPR) | Esperance, Australia | |
| 12 | 10,507.35 miles (16,909.90 km) SW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 13 | 10,486.26 miles (16,875.96 km) SW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 10,461.75 miles (16,836.52 km) SW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,457.49 miles (16,829.65 km) SW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |