Nonstop flight route between Fort Sill, Oklahoma, United States and Fort Frances, Ontario, Canada:
Departure Airport:
(34°38'58"N by 98°24'7"W)
Arrival Airport:
(48°39'15"N by 93°26'26"W)
Distance from FSI to YAG:
1,000.40 miles (1,609.99 km)
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Jump to:
- About this route
- FSI Airport Information
- YAG Airport Information
- Facts about FSI
- Facts about YAG
- 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 YAG
- List of Nearest Airports to YAG
- Map of Furthest Airports from YAG
- List of Furthest Airports from YAG
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Fort Frances Municipal Airport (YAG), Fort Frances, Ontario, Canada would travel a Great Circle distance of 1,000 miles (or 1,610 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 Fort Frances Municipal 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: | YAG / CYAG |
| Airport Name: | Fort Frances Municipal Airport |
| Location: | Fort Frances, Ontario, Canada |
| GPS Coordinates: | 48°39'15"N by 93°26'26"W |
| Operator/Owner: | Town of Fort Frances |
| Airport Type: | Public |
| Elevation: | 1123 feet (342 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from YAG |
| More Information: | YAG Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
- 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.
- 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.
- 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 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 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.
- 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.
Facts about Fort Frances Municipal Airport (YAG):
- The furthest airport from Fort Frances Municipal Airport (YAG) is Margaret River Airport (MGV), which is located 10,656 miles (17,150 kilometers) away in Margaret River, Western Australia, Australia.
- Fort Frances Municipal Airport (YAG) currently has only 1 runway.
- The closest airport to Fort Frances Municipal Airport (YAG) is Falls International Airport (INL), which is located only 6 miles (10 kilometers) SSE of YAG.
| 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 | 6.39 miles (10.28 km) SSE | Falls International Airport (INL) | International Falls, Minnesota, United States | |
| 2 | 53.68 miles (86.39 km) W | Baudette International Airport (BDE) | Baudette, Minnesota, United States | |
| 3 | 82.56 miles (132.87 km) E | Atikokan Municipal Aerodrome (YIB) | Atikokan, Ontario, Canada | |
| 4 | 87.19 miles (140.32 km) NNE | Dryden Regional Airport (YHD) | Dryden, Ontario, Canada | |
| 5 | 88.72 miles (142.77 km) NNW | Kenora Airport (YQK) | Kenora, Ontario, Canada | |
| 6 | 89.06 miles (143.33 km) WNW | Warroad International Memorial Airport (RRT) | Warroad, Minnesota, United States | |
| 7 | 91.90 miles (147.90 km) SSE | Range Regional Airport (HIB) | Hibbing, Minnesota, United States | |
| 8 | 93.68 miles (150.76 km) SE | Ely Municipal Airport (LYU) | Ely, Minnesota, United States | |
| 9 | 94.64 miles (152.31 km) NE | Ignace Municipal Airport (ZUC) | Ignace, Ontario, Canada | |
| 10 | 99.78 miles (160.57 km) S | Grand Rapids - Itasca County Airport (GPZ) | Grand Rapids, Minnesota, United States | |
| 11 | 104.88 miles (168.78 km) SW | Bemidji Regional Airport (BJI) | Bemidji, Minnesota, United States | |
| 12 | 122.22 miles (196.69 km) NE | Sioux Lookout Airport (YXL) | Sioux Lookout, Ontario, Canada | |
| 13 | 132.39 miles (213.06 km) WSW | Thief River Falls Regional Airport (TVF) | Thief River Falls, Minnesota, United States | |
| 14 | 137.96 miles (222.02 km) SSE | Duluth International Airport (DLH) | Duluth, Minnesota, United States | |
| 15 | 149.49 miles (240.58 km) SSE | Richard I. Bong Airport (SUW) | Superior, Wisconsin, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,656.32 miles (17,149.64 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 10,632.26 miles (17,110.93 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 10,628.47 miles (17,104.82 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 10,605.98 miles (17,068.63 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 10,588.21 miles (17,040.03 km) WSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 6 | 10,544.73 miles (16,970.06 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 7 | 10,537.98 miles (16,959.19 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 8 | 10,535.27 miles (16,954.83 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 9 | 10,523.99 miles (16,936.68 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 10 | 10,477.90 miles (16,862.50 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 10,412.36 miles (16,757.03 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 10,382.41 miles (16,708.83 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 13 | 10,369.93 miles (16,688.74 km) SW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 14 | 10,363.86 miles (16,678.97 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,357.45 miles (16,668.66 km) WSW | Esperance Airport (EPR) | Esperance, Australia | |