Nonstop flight route between Fort Sill, Oklahoma, United States and Northern Quebec, Canada:
Departure Airport:
(34°38'58"N by 98°24'7"W)
Arrival Airport:
(53°45'16"N by 73°40'31"W)
Distance from FSI to YAH:
1,782.55 miles (2,868.73 km)
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Jump to:
- About this route
- FSI Airport Information
- YAH Airport Information
- Facts about FSI
- Facts about YAH
- 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 YAH
- List of Nearest Airports to YAH
- Map of Furthest Airports from YAH
- List of Furthest Airports from YAH
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and La Grande-4 Airport (YAH), Northern Quebec, Canada would travel a Great Circle distance of 1,783 miles (or 2,869 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 La Grande-4 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: | YAH / CYAH |
| Airport Name: | La Grande-4 Airport |
| Location: | Northern Quebec, Canada |
| GPS Coordinates: | 53°45'16"N by 73°40'31"W |
| Operator/Owner: | Hydro-Québec |
| Airport Type: | Private |
| Elevation: | 1005 feet (306 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from YAH |
| More Information: | YAH Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- After returning from combat duty in France, a cadre of the 135th Aero Squadron ) was assigned to Post Field as an observation squadron, supplying aircraft for the United States Army Field Artillery School at Fort Sill and supported Army units at Fort Leavenworth, Kansas.
- The first Army aviation at Fort Sill began on 26 July 1915 when eight Curtiss JN-3 airplanes of the 1st Aero Squadron arrived from Rockwell Field, California.
- 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.
- 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.
- 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 La Grande-4 Airport (YAH):
- The closest airport to La Grande-4 Airport (YAH) is La Grande-3 Airport (YAR), which is located 104 miles (167 kilometers) W of YAH.
- The furthest airport from La Grande-4 Airport (YAH) is Albany Airport (ALH), which is located 11,023 miles (17,739 kilometers) away in Albany, Western Australia, Australia.
- La Grande-4 Airport (YAH) currently has only 1 runway.
| 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 | 103.98 miles (167.34 km) W | La Grande-3 Airport (YAR) | Northern Quebec, Canada | |
| 2 | 115.30 miles (185.56 km) ENE | Fontages Airport (YFG) | Fontanges, Quebec, Canada | |
| 3 | 165.06 miles (265.63 km) W | La Grande Rivière Airport (YGL) | Radisson, Quebec, Canada | |
| 4 | 175.85 miles (283.00 km) SW | Nemiscau Airport (YNS) | Nemiscau, Quebec, Canada | |
| 5 | 194.99 miles (313.81 km) NW | Kuujjuarapik Airport (YGW) | Kuujjuarapik, Quebec, Canada | |
| 6 | 213.98 miles (344.36 km) W | Chisasibi Airport (YKU) | Chisasibi, Quebec, Canada | |
| 7 | 218.56 miles (351.74 km) WSW | Wemindji Airport (YNC) | Wemindji, Quebec, Canada | |
| 8 | 222.52 miles (358.11 km) NNW | Umiujaq Airport (YUD) | Umiujaq, Quebec, Canada | |
| 9 | 227.51 miles (366.15 km) WSW | Eastmain River Airport (ZEM) | Eastmain, Quebec, Canada | |
| 10 | 265.07 miles (426.60 km) SW | Waskaganish Airport (YKQ) | Waskaganish, Quebec, Canada | |
| 11 | 277.58 miles (446.73 km) S | Chibougamau/Chapais Airport (YMT) | Chibougamau, Quebec, Canada | |
| 12 | 286.34 miles (460.82 km) ENE | Schefferville Airport (YKL) | Schefferville, Quebec, Canada | |
| 13 | 286.67 miles (461.34 km) E | Wabush Airport (YWK) | Wabush, Labrador, Canada | |
| 14 | 292.09 miles (470.06 km) NW | Sanikiluaq Airport (YSK) | Sanikiluaq, Nunavut, Canada | |
| 15 | 327.41 miles (526.91 km) SW | Matagami Airport (YNM) | Matagami, Quebec, Canada | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,022.76 miles (17,739.37 km) SSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 2 | 11,007.76 miles (17,715.22 km) SSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 3 | 11,001.51 miles (17,705.18 km) SSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 4 | 10,980.87 miles (17,671.96 km) SSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 5 | 10,956.09 miles (17,632.08 km) SSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 6 | 10,944.37 miles (17,613.22 km) SSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 7 | 10,867.56 miles (17,489.59 km) SSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 10,866.47 miles (17,487.84 km) SSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 9 | 10,856.58 miles (17,471.93 km) SW | Esperance Airport (EPR) | Esperance, Australia | |
| 10 | 10,855.77 miles (17,470.63 km) SSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 11 | 10,758.61 miles (17,314.25 km) SSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 12 | 10,702.68 miles (17,224.25 km) SSW | Kambalda Airport (KDB) | Kambalda, Western Australia, Australia | |
| 13 | 10,679.83 miles (17,187.49 km) SSW | Kalgoorlie-Boulder Airport (KGI) | Kalgoorlie, Western Australia, Australia | |
| 14 | 10,671.84 miles (17,174.62 km) SSW | Windarling Airport (WRN) | Windarling, Australia | |
| 15 | 10,671.38 miles (17,173.89 km) SSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |