Nonstop flight route between Saint-Augustin, Quebec, Canada and Fort Sill, Oklahoma, United States:
Departure Airport:
(51°12'34"N by 58°39'26"W)
Arrival Airport:
(34°38'58"N by 98°24'7"W)
Distance from YIF to FSI:
2,274.61 miles (3,660.63 km)
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- About this route
- YIF Airport Information
- FSI Airport Information
- Facts about YIF
- Facts about FSI
- Map of Nearest Airports to YIF
- List of Nearest Airports to YIF
- Map of Furthest Airports from YIF
- List of Furthest Airports from YIF
- Map of Nearest Airports to FSI
- List of Nearest Airports to FSI
- Map of Furthest Airports from FSI
- List of Furthest Airports from FSI
About this route:
A direct, nonstop flight between Saint-Augustin Airport (YIF), Saint-Augustin, Quebec, Canada and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 2,275 miles (or 3,661 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 Saint-Augustin Airport and Henry Post Army Airfield, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | YIF / CYIF |
| Airport Name: | Saint-Augustin Airport |
| Location: | Saint-Augustin, Quebec, Canada |
| GPS Coordinates: | 51°12'34"N by 58°39'26"W |
| Operator/Owner: | Government of Quebec |
| Airport Type: | Public |
| Elevation: | 19 feet (6 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from YIF |
| More Information: | YIF Maps & Info |
Arrival 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 |
Facts about Saint-Augustin Airport (YIF):
- Saint-Augustin Airport (YIF) currently has only 1 runway.
- Because of Saint-Augustin Airport's relatively low elevation of 19 feet, planes can take off or land at Saint-Augustin 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 closest airport to Saint-Augustin Airport (YIF) is La Tabatière Airport (ZLT), which is located 30 miles (48 kilometers) SSW of YIF.
- The furthest airport from Saint-Augustin Airport (YIF) is Albany Airport (ALH), which is located 11,299 miles (18,184 kilometers) away in Albany, Western Australia, Australia.
Facts about Henry Post Army Airfield (FSI):
- 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.
- 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.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- Henry Post Army Airfield was the first home of all Army Aviation Training after World War II before moving to Fort Rucker, Alabama in 1954.
- 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.
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- Air Service/Corps units assigned to Post Field between 1919 and 1941
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 29.60 miles (47.64 km) SSW | La Tabatière Airport (ZLT) | La Tabatière, Quebec, Canada |     |
| 2 | 48.65 miles (78.30 km) SW | Tête-à-la-Baleine Airport (ZTB) | Tête-à-la-Baleine, Quebec, Canada | |
| 3 | 65.52 miles (105.45 km) ENE | Lourdes-de-Blanc-Sablon Airport (YBX) | Lourdes-de-Blanc-Sablon, Quebec, Canada | |
| 4 | 66.67 miles (107.30 km) SW | Chevery Airport (YHR) | Chevery, Quebec, Canada | |
| 5 | 111.92 miles (180.11 km) E | St. Anthony Airport (YAY) | St. Anthony, Newfoundland and Labrador, Canada | |
| 6 | 133.91 miles (215.51 km) WSW | Kégashka Airport (ZKG) | Kegaska, Quebec, Canada | |
| 7 | 136.15 miles (219.11 km) NE | Port Hope Simpson Airport (YHA) | Port Hope Simpson, Newfoundland and Labrador, Canada | |
| 8 | 141.92 miles (228.39 km) ENE | Mary's Harbour Airport (YMH) | Mary's Harbour, Labrador, Canada | |
| 9 | 149.08 miles (239.91 km) SSE | Deer Lake Regional Airport (YDF) | Deer Lake, Newfoundland and Labrador, Canada | |
| 10 | 150.70 miles (242.53 km) ENE | St. Lewis (Fox Harbour) Airport (YFX) | St. Lewis, Newfoundland and Labrador, Canada | |
| 11 | 152.58 miles (245.55 km) NE | Charlottetown Airport (YHG) | Charlottetown, Newfoundland and Labrador, Canada | |
| 12 | 154.07 miles (247.95 km) WSW | Natashquan Airport (YNA) | Natashquan, Quebec, Canada | |
| 13 | 154.27 miles (248.28 km) NE | Williams Harbour Airport (YWM) | Williams Harbour, Newfoundland and Labrador, Canada | |
| 14 | 163.80 miles (263.61 km) NNW | CFB Goose Bay (YYR) | Goose Bay, Labrador, Canada | |
| 15 | 183.89 miles (295.94 km) NNE | Cartwright Airport (YRF) | Cartwright, Newfoundland and Labrador, Canada | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,299.18 miles (18,184.23 km) S | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 2 | 11,237.42 miles (18,084.83 km) SSE | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 3 | 11,225.68 miles (18,065.93 km) S | Esperance Airport (EPR) | Esperance, Australia | |
| 4 | 11,212.84 miles (18,045.27 km) S | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 5 | 11,202.47 miles (18,028.58 km) SSE | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 6 | 11,189.81 miles (18,008.21 km) SSE | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 7 | 11,172.13 miles (17,979.76 km) SSE | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 8 | 11,114.99 miles (17,887.80 km) SW | Portland Airport (PTJ) | Portland, Victoria, Australia | |
| 9 | 11,108.89 miles (17,877.98 km) SW | Mount Gambier Airport (MGB) | Mount Gambier, Australia | |
| 10 | 11,103.20 miles (17,868.83 km) WSW | King Island Airport (KNS) | Currie, Tasmania, Australia | |
| 11 | 11,100.18 miles (17,863.96 km) WSW | Smithton Airport (SIO) | Smithton, Tasmania, Australia | |
| 12 | 11,099.75 miles (17,863.27 km) SW | Kingscote Airport (KGC) | Kingscote, South Australia, Australia | |
| 13 | 11,087.45 miles (17,843.47 km) SSE | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 14 | 11,084.93 miles (17,839.43 km) WSW | Hobart International Airport (HBA) | Hobart, Tasmania, Australia | |
| 15 | 11,081.55 miles (17,833.98 km) WSW | Burnie Airport (BWT) | Burnie, Tasmania, 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 | |