Nonstop flight route between Fort Sill, Oklahoma, United States and Cowley, Alberta, Canada:
Departure Airport:
(34°38'58"N by 98°24'7"W)
Arrival Airport:
(49°38'11"N by 114°5'39"W)
Distance from FSI to YYM:
1,305.33 miles (2,100.73 km)
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- About this route
- FSI Airport Information
- YYM Airport Information
- Facts about FSI
- Facts about YYM
- 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 YYM
- List of Nearest Airports to YYM
- Map of Furthest Airports from YYM
- List of Furthest Airports from YYM
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Cowley Airport (YYM), Cowley, Alberta, Canada would travel a Great Circle distance of 1,305 miles (or 2,101 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 Cowley 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: | YYM / CYYM |
| Airport Name: | Cowley Airport |
| Location: | Cowley, Alberta, Canada |
| GPS Coordinates: | 49°38'11"N by 114°5'39"W |
| Operator/Owner: | Alberta Soaring Council |
| Airport Type: | Private |
| Elevation: | 3876 feet (1,181 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from YYM |
| More Information: | YYM Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- Air Service/Corps units assigned to Post Field between 1919 and 1941
- 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.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- 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 Fort Sill Army Radar Approach Control is the Army's Second busiest Air Traffic Control Facility, providing Radar Approach Control service to Henry Post Army Air Field, Lawton/Fort Sill Regional Airport, Duncan/Haliburton Airport and many smaller airports in the area.
- 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 Cowley Airport (YYM):
- The furthest airport from Cowley Airport (YYM) is Tôlanaro Airport (FTU), which is located 10,456 miles (16,828 kilometers) away in Tôlanaro, Madagascar.
- The closest airport to Cowley Airport (YYM) is Pincher Creek Airport (WPC), which is located only 9 miles (15 kilometers) SSE of YYM.
- Cowley Airport (YYM) has 2 runways.
| 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 | 9.11 miles (14.66 km) SSE | Pincher Creek Airport (WPC) | Pincher Creek, Alberta, Canada | |
| 2 | 57.94 miles (93.24 km) E | Lethbridge Airport (YQL) | Lethbridge, Alberta, Canada | |
| 3 | 75.55 miles (121.58 km) W | Canadian Rockies International Airport (YXC) | Cranbrook, British Columbia, Canada | |
| 4 | 91.90 miles (147.90 km) S | Glacier Park International Airport (FCA) | Kalispell, Montana, United States | |
| 5 | 92.43 miles (148.76 km) WNW | Fairmont Hot Springs Airport (YCZ) | Fairmont Hot Springs, British Columbia, Canada | |
| 6 | 102.74 miles (165.35 km) N | Calgary International Airport (YYC) | Calgary, Alberta, Canada | |
| 7 | 105.27 miles (169.41 km) SE | Cut Bank Municipal AirportCut Bank Army Air Field (CTB) | Cut Bank, Montana, United States | |
| 8 | 125.88 miles (202.58 km) NNW | Banff Airport (YBA) | Banff, Alberta, Canada | |
| 9 | 125.90 miles (202.62 km) SE | Shelby Airport (SBX) | Shelby, Montana, United States | |
| 10 | 137.03 miles (220.53 km) ENE | CFB Suffield (YSD) | Suffield, Alberta, Canada | |
| 11 | 152.66 miles (245.68 km) ENE | Medicine Hat Airport (YXH) | Medicine Hat, Alberta, Canada | |
| 12 | 160.59 miles (258.44 km) W | West Kootenay Regional Airport (YCG) | Castlegar, British Columbia, Canada | |
| 13 | 176.12 miles (283.43 km) N | Red Deer Regional Airport (YQF) | Red Deer, Alberta, Canada | |
| 14 | 178.83 miles (287.80 km) SW | Coeur d'Alene Airport (COE) | Coeur d'Alene, Idaho, United States | |
| 15 | 187.93 miles (302.45 km) S | Missoula International Airport (MSO) | Missoula, Montana, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,456.30 miles (16,827.75 km) SE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 2 | 10,398.03 miles (16,733.96 km) SSE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 3 | 10,372.17 miles (16,692.35 km) SE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 4 | 10,370.44 miles (16,689.56 km) SSE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 5 | 10,368.78 miles (16,686.90 km) SSE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 6 | 10,367.60 miles (16,684.99 km) S | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 7 | 10,249.97 miles (16,495.68 km) SSE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 8 | 10,234.49 miles (16,470.77 km) SE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 9 | 10,189.00 miles (16,397.57 km) ESE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 10 | 10,186.38 miles (16,393.34 km) ESE | East London Airport (ELS) | East London, South Africa | |
| 11 | 10,170.72 miles (16,368.15 km) SE | Andavadoaka Airport (DVD) | Andavadoaka, Toliara province, Atsimo-Andrefana region, Madagascar | |
| 12 | 10,169.57 miles (16,366.29 km) ESE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 13 | 10,158.34 miles (16,348.22 km) ESE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 14 | 10,157.99 miles (16,347.65 km) SE | Manja Airport (MJA) | Manja, Menabe, Madagascar | |
| 15 | 10,153.17 miles (16,339.90 km) ESE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |