Nonstop flight route between Fort Sill, Oklahoma, United States and Sherbrooke, Quebec, Canada:
Departure Airport:
(34°38'58"N by 98°24'7"W)
Arrival Airport:
(45°26'18"N by 71°41'29"W)
Distance from FSI to YSC:
1,586.91 miles (2,553.87 km)
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Jump to:
- About this route
- FSI Airport Information
- YSC Airport Information
- Facts about FSI
- Facts about YSC
- 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 YSC
- List of Nearest Airports to YSC
- Map of Furthest Airports from YSC
- List of Furthest Airports from YSC
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Sherbrooke Airport (YSC), Sherbrooke, Quebec, Canada would travel a Great Circle distance of 1,587 miles (or 2,554 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 Sherbrooke 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: | YSC / CYSC |
| Airport Name: | Sherbrooke Airport |
| Location: | Sherbrooke, Quebec, Canada |
| GPS Coordinates: | 45°26'18"N by 71°41'29"W |
| Operator/Owner: | OPSIS |
| Airport Type: | Public |
| Elevation: | 792 feet (241 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from YSC |
| More Information: | YSC Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- Air Service/Corps units assigned to Post Field between 1919 and 1941
- Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
- The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- 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.
- 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 (FSI) currently has only 1 runway.
- 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 Sherbrooke Airport (YSC):
- The furthest airport from Sherbrooke Airport (YSC) is Margaret River Airport (MGV), which is located 11,564 miles (18,611 kilometers) away in Margaret River, Western Australia, Australia.
- Sherbrooke Airport (YSC) currently has only 1 runway.
- Weekday flights connecting Toronto were discontinued in 2009.
- The closest airport to Sherbrooke Airport (YSC) is Newport State Airport (EFK), which is located 46 miles (74 kilometers) SW of YSC.
- Because of Sherbrooke Airport's relatively low elevation of 792 feet, planes can take off or land at Sherbrooke 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.
| 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 | 46.14 miles (74.26 km) SW | Newport State Airport (EFK) | Newport, Vermont, United States | |
| 2 | 52.01 miles (83.70 km) W | Roland-Désourdy Airport (ZBM) | Bromont, Quebec, Canada | |
| 3 | 62.16 miles (100.03 km) SSW | Caledonia County Airport (LLX) | Lyndonville, Vermont, United States | |
| 4 | 64.75 miles (104.20 km) SSE | Berlin Regional Airport (BML) | Berlin, New Hampshire, United States | |
| 5 | 74.35 miles (119.65 km) S | Mount Washington Regional Airport (HIE) | Whitefield, New Hampshire, United States | |
| 6 | 77.02 miles (123.95 km) SW | Morrisville–Stowe State Airport (MVL) | Morrisville, Vermont, United States | |
| 7 | 77.84 miles (125.26 km) W | Saint-Jean Airport (YJN) | Saint-Jean-sur-Richelieu, Quebec, Canada | |
| 8 | 79.01 miles (127.15 km) NW | Trois-Rivières Airport (YRQ) | Trois-Rivières, Quebec, Canada | |
| 9 | 83.78 miles (134.82 km) W | Montréal/Saint-Hubert Airport (YHU) | Saint-Hubert, Longueuil (near Montreal), Quebec, Canada | |
| 10 | 94.53 miles (152.14 km) N | Québec City Jean Lesage International Airport (YQB) | Sainte-Foy, Quebec City, Quebec, Canada | |
| 11 | 95.41 miles (153.54 km) SSW | Edward F. Knapp State Airport (MPV) | Barre/Montpelier, Vermont, United States | |
| 12 | 97.83 miles (157.43 km) SW | Burlington International Airport (BTV) | Burlington, Vermont, United States | |
| 13 | 98.28 miles (158.17 km) W | Cartierville Airport (YCV) | Cartierville, Quebec, Canada | |
| 14 | 99.35 miles (159.89 km) W | Montréal–Pierre Elliott Trudeau International Airport (YUL) | Dorval, Quebec, Canada | |
| 15 | 101.56 miles (163.45 km) N | Valcartier (W/C J.H.L. (Joe) Lecomte) Heliport (YOY) | Valcartier, Québec, Canada | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,564.28 miles (18,610.86 km) SSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,561.15 miles (18,605.83 km) SSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 3 | 11,556.56 miles (18,598.43 km) SW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 4 | 11,542.18 miles (18,575.30 km) SSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 5 | 11,516.31 miles (18,533.66 km) SSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 6 | 11,486.63 miles (18,485.90 km) SW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 7 | 11,431.26 miles (18,396.78 km) SSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 8 | 11,429.93 miles (18,394.64 km) SSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 9 | 11,417.98 miles (18,375.41 km) SSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 10 | 11,354.57 miles (18,273.36 km) SW | Esperance Airport (EPR) | Esperance, Australia | |
| 11 | 11,329.23 miles (18,232.59 km) SSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 12 | 11,238.95 miles (18,087.29 km) SSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 13 | 11,235.09 miles (18,081.09 km) SSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 14 | 11,220.38 miles (18,057.41 km) SW | Kambalda Airport (KDB) | Kambalda, Western Australia, Australia | |
| 15 | 11,214.83 miles (18,048.47 km) SSW | Windarling Airport (WRN) | Windarling, Australia | |