Nonstop flight route between Fort Sill, Oklahoma, United States and Calgary, Alberta, Canada:
Departure Airport:
(34°38'58"N by 98°24'7"W)
Arrival Airport:
(51°7'21"N by 114°0'47"W)
Distance from FSI to YYC:
1,379.38 miles (2,219.90 km)
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Jump to:
- About this route
- FSI Airport Information
- YYC Airport Information
- Facts about FSI
- Facts about YYC
- 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 YYC
- List of Nearest Airports to YYC
- Map of Furthest Airports from YYC
- List of Furthest Airports from YYC
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Calgary International Airport (YYC), Calgary, Alberta, Canada would travel a Great Circle distance of 1,379 miles (or 2,220 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 Calgary International 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: | YYC / CYYC |
| Airport Name: | Calgary International Airport |
| Location: | Calgary, Alberta, Canada |
| GPS Coordinates: | 51°7'21"N by 114°0'47"W |
| Area Served: | Calgary, Alberta, Canada |
| Operator/Owner: | Transport Canada |
| Airport Type: | Public |
| Elevation: | 3606 feet (1,099 meters) |
| # of Runways: | 4 |
| View all routes: | Routes from YYC |
| More Information: | YYC Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
- The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
- 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 field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- 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 Army Airfield (FSI) currently has only 1 runway.
Facts about Calgary International Airport (YYC):
- The closest airport to Calgary International Airport (YYC) is Banff Airport (YBA), which is located 66 miles (107 kilometers) W of YYC.
- Calgary International Airport (YYC) has 4 runways.
- Air Canada and Air Canada Express operations at the Calgary International Airport.
- There are only a few ground handling companies in Calgary but each provides different services to the airlines they serve.
- The furthest airport from Calgary International Airport (YYC) is Tôlanaro Airport (FTU), which is located 10,372 miles (16,692 kilometers) away in Tôlanaro, Madagascar.
- WestJet has its corporate headquarters on the airport property.
- Gates 31 to 50 are located on this concourse.
| 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 | 66.42 miles (106.90 km) W | Banff Airport (YBA) | Banff, Alberta, Canada | |
| 2 | 73.40 miles (118.12 km) N | Red Deer Regional Airport (YQF) | Red Deer, Alberta, Canada | |
| 3 | 98.02 miles (157.75 km) NNW | Rocky Mountain House Airport (YRM) | Rocky Mountain House, Alberta, Canada | |
| 4 | 98.05 miles (157.79 km) WSW | Fairmont Hot Springs Airport (YCZ) | Fairmont Hot Springs, British Columbia, Canada | |
| 5 | 102.74 miles (165.35 km) S | Cowley Airport (YYM) | Cowley, Alberta, Canada | |
| 6 | 110.69 miles (178.13 km) S | Pincher Creek Airport (WPC) | Pincher Creek, Alberta, Canada | |
| 7 | 116.14 miles (186.91 km) SSE | Lethbridge Airport (YQL) | Lethbridge, Alberta, Canada | |
| 8 | 128.36 miles (206.57 km) ENE | Coronation Airport (YCT) | Coronation, Alberta, Canada | |
| 9 | 130.24 miles (209.60 km) SW | Canadian Rockies International Airport (YXC) | Cranbrook, British Columbia, Canada | |
| 10 | 137.36 miles (221.07 km) ESE | CFB Suffield (YSD) | Suffield, Alberta, Canada | |
| 11 | 152.25 miles (245.03 km) N | Edmonton International Airport (YEG) | Edmonton, Alberta, Canada | |
| 12 | 153.42 miles (246.91 km) NNW | Drayton Valley Industrial Airport (YDC) | Drayton Valley, Alberta, Canada | |
| 13 | 160.87 miles (258.89 km) ENE | Vermilion Airport (YVG) | Vermilion, Alberta, Canada | |
| 14 | 163.35 miles (262.89 km) ESE | Medicine Hat Airport (YXH) | Medicine Hat, Alberta, Canada | |
| 15 | 177.23 miles (285.22 km) NE | Wainwright Aerodrome (YWV) | Wainwright, Alberta, Canada | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,372.25 miles (16,692.47 km) SE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 2 | 10,300.19 miles (16,576.50 km) SSE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 3 | 10,291.70 miles (16,562.84 km) SE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 4 | 10,272.40 miles (16,531.78 km) SSE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 5 | 10,268.81 miles (16,526.00 km) SSE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 6 | 10,264.97 miles (16,519.83 km) S | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 7 | 10,160.84 miles (16,352.25 km) SSE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 8 | 10,152.58 miles (16,338.95 km) ESE | East London Airport (ELS) | East London, South Africa | |
| 9 | 10,147.37 miles (16,330.57 km) SSE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 10 | 10,145.85 miles (16,328.13 km) ESE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 11 | 10,138.64 miles (16,316.52 km) ESE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 12 | 10,113.91 miles (16,276.71 km) ESE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 13 | 10,111.27 miles (16,272.48 km) ESE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 14 | 10,106.05 miles (16,264.08 km) ESE | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 15 | 10,102.60 miles (16,258.51 km) ESE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |