Nonstop flight route between Fort Sill, Oklahoma, United States and Owen Sound, Ontario, Canada:
Departure Airport:
(34°38'58"N by 98°24'7"W)
Arrival Airport:
(44°35'26"N by 80°50'17"W)
Distance from FSI to YOS:
1,155.88 miles (1,860.21 km)
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Jump to:
- About this route
- FSI Airport Information
- YOS Airport Information
- Facts about FSI
- Facts about YOS
- 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 YOS
- List of Nearest Airports to YOS
- Map of Furthest Airports from YOS
- List of Furthest Airports from YOS
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Owen Sound/Billy Bishop Regional Airport (YOS), Owen Sound, Ontario, Canada would travel a Great Circle distance of 1,156 miles (or 1,860 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 Owen Sound/Billy Bishop Regional 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: | YOS / CYOS |
| Airport Names: |
|
| Location: | Owen Sound, Ontario, Canada |
| GPS Coordinates: | 44°35'26"N by 80°50'17"W |
| Operator/Owner: | City of Owen Sound |
| Airport Type: | Public |
| Elevation: | 1008 feet (307 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from YOS |
| More Information: | YOS Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- 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.
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- 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 AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
- Post Field served as a base for flight training for the Air Service.
- 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.
- The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
Facts about Owen Sound/Billy Bishop Regional Airport (YOS):
- In addition to being known as "Owen Sound/Billy Bishop Regional Airport", another name for YOS is "Owen Sound (Billy Bishop) Regional Airport".
- The furthest airport from Owen Sound/Billy Bishop Regional Airport (YOS) is Margaret River Airport (MGV), which is located 11,314 miles (18,208 kilometers) away in Margaret River, Western Australia, Australia.
- The airport is classified as an airport of entry by NAV CANADA and is staffed by the Canada Border Services Agency.
- Owen Sound/Billy Bishop Regional Airport (YOS) currently has only 1 runway.
- The closest airport to Owen Sound/Billy Bishop Regional Airport (YOS) is Wiarton Airport (YVV), which is located only 17 miles (27 kilometers) NW of YOS.
| 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 | 17.00 miles (27.36 km) NW | Wiarton Airport (YVV) | Wiarton, Ontario, Canada | |
| 2 | 46.45 miles (74.75 km) SW | Kincardine Airport (YKD) | Kincardine, Ontario, Canada | |
| 3 | 50.72 miles (81.62 km) ESE | Canadian Forces Base Borden (YBN) | Borden, Ontario, Canada | |
| 4 | 52.90 miles (85.14 km) NE | Parry Sound/Frying Pan Island-Sans Souci Water Aerodrome (YSI) | Frying Pan Island (near Parry Sound), Ontario, Canada | |
| 5 | 67.41 miles (108.49 km) NE | Parry Sound Area Municipal Airport (YPD) | Parry Sound, Ontario, Canada | |
| 6 | 79.80 miles (128.42 km) ENE | Muskoka Airport (YQA) | Muskoka, Ontario, Canada | |
| 7 | 81.33 miles (130.89 km) SSE | Region of Waterloo International Airport (YKF) | Waterloo Regional Municipality, Ontario, Canada | |
| 8 | 87.03 miles (140.06 km) SE | Toronto Pearson International Airport (YYZ) | Mississauga, Ontario, Canada | |
| 9 | 88.53 miles (142.47 km) SE | Buttonville Airport (YKZ) | Buttonville, Ontario, Canada | |
| 10 | 96.08 miles (154.62 km) SSW | Centralia/James T. Field Memorial Aerodrome (YCE) | Centralia, Ontario, Canada | |
| 11 | 97.71 miles (157.24 km) SE | Billy Bishop Toronto City Airport (YTZ) | Toronto, Ontario, Canada | |
| 12 | 99.71 miles (160.47 km) NNW | Manitowaning/Manitoulin East Municipal Airport (YEM) | Manitowaning, Ontario, Canada | |
| 13 | 106.58 miles (171.53 km) ESE | Oshawa Municipal Airport (YOO) | Oshawa, Ontario, Canada | |
| 14 | 107.74 miles (173.39 km) SSE | John C. Munro Hamilton International Airport (YHM) | Hamilton, Ontario, Canada | |
| 15 | 108.74 miles (174.99 km) S | London international Airport (YXU) | London, Ontario, Canada | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,313.69 miles (18,207.57 km) SW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,289.65 miles (18,168.88 km) SW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,287.51 miles (18,165.44 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 11,263.21 miles (18,126.34 km) SW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 11,247.53 miles (18,101.10 km) WSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 6 | 11,198.47 miles (18,022.15 km) SW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 7 | 11,197.44 miles (18,020.48 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 8 | 11,190.07 miles (18,008.63 km) SW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 9 | 11,178.59 miles (17,990.15 km) SW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 10 | 11,124.62 miles (17,903.29 km) SW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 11,051.70 miles (17,785.95 km) SW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 11,028.91 miles (17,749.27 km) SW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 13 | 11,014.96 miles (17,726.82 km) WSW | Esperance Airport (EPR) | Esperance, Australia | |
| 14 | 11,005.67 miles (17,711.87 km) SW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 11,002.18 miles (17,706.25 km) SW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |