Nonstop flight route between Fort Sill, Oklahoma, United States and Watson Lake, Yukon, Canada:
Departure Airport:
(34°38'58"N by 98°24'7"W)
Arrival Airport:
(60°6'59"N by 128°49'20"W)
Distance from FSI to YQH:
2,223.19 miles (3,577.87 km)
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Jump to:
- About this route
- FSI Airport Information
- YQH Airport Information
- Facts about FSI
- Facts about YQH
- 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 YQH
- List of Nearest Airports to YQH
- Map of Furthest Airports from YQH
- List of Furthest Airports from YQH
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Watson Lake Airport (YQH), Watson Lake, Yukon, Canada would travel a Great Circle distance of 2,223 miles (or 3,578 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 Watson Lake 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: | YQH / CYQH |
| Airport Name: | Watson Lake Airport |
| Location: | Watson Lake, Yukon, Canada |
| GPS Coordinates: | 60°6'59"N by 128°49'20"W |
| Operator/Owner: | Government of Yukon |
| Airport Type: | Public |
| Elevation: | 2255 feet (687 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from YQH |
| More Information: | YQH 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 (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.
- 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.
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
- 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.
Facts about Watson Lake Airport (YQH):
- Watson Lake Airport (YQH) currently has only 1 runway.
- The closest airport to Watson Lake Airport (YQH) is Dease Lake Airport (YDL), which is located 125 miles (201 kilometers) SSW of YQH.
- Scheduled passenger service was offered in the past by Canadian Pacific Air Lines and its successors CP Air and Canadian Airlines International to Vancouver, British Columbia.
- The furthest airport from Watson Lake Airport (YQH) is Port Alfred Airport (AFD), which is located 10,299 miles (16,574 kilometers) away in Port Alfred, South Africa.
| 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 | 124.59 miles (200.51 km) SSW | Dease Lake Airport (YDL) | Dease Lake, British Columbia, Canada | |
| 2 | 134.93 miles (217.15 km) W | Teslin Airport (YZW) | Teslin, Yukon, Canada | |
| 3 | 172.47 miles (277.56 km) SSW | Telegraph Creek Airport (YTX) | Telegraph Creek, British Columbia, Canada | |
| 4 | 175.77 miles (282.87 km) NW | Ross River Airport (XRR) | Ross River, Yukon, Canada | |
| 5 | 184.06 miles (296.22 km) E | Fort Liard Airport (YJF) | Fort Liard, Northwest Territories, Canada | |
| 6 | 209.35 miles (336.92 km) NW | Faro Airport (ZFA) | Faro, Yukon, Canada | |
| 7 | 216.85 miles (348.99 km) WNW | Erik Nielsen Whitehorse International Airport (YXY) | Whitehorse, Yukon, Canada | |
| 8 | 223.61 miles (359.87 km) SSW | Bob Quinn Lake Airport (YBO) | Bob Quinn Lake, British Columbia, Canada | |
| 9 | 230.16 miles (370.40 km) W | Skagway Airport (SGY) | Skagway, Alaska, United States | |
| 10 | 235.58 miles (379.12 km) ESE | Northern Rockies Regional Airport (YYE) | Fort Nelson, British Columbia, Canada | |
| 11 | 236.87 miles (381.20 km) WSW | Juneau International Airport (JNU) | Juneau, Alaska, United States | |
| 12 | 241.27 miles (388.28 km) WSW | Haines Airport (HNS) | Haines, Alaska, United States | |
| 13 | 250.43 miles (403.03 km) WSW | Funter Bay Seaplane Base (FNR) | Funter Bay, Alaska, United States | |
| 14 | 251.18 miles (404.23 km) SSW | Bronson Creek Airport (YBM) | Bronson Creek, British Columbia, Canada | |
| 15 | 261.51 miles (420.86 km) WSW | Excursion Inlet Seaplane Base (EXI) | Excursion Inlet, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,298.77 miles (16,574.22 km) SE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 2 | 10,296.16 miles (16,570.02 km) SE | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 3 | 10,286.98 miles (16,555.25 km) SE | East London Airport (ELS) | East London, South Africa | |
| 4 | 10,217.07 miles (16,442.74 km) SE | George Airport (GRJ) | George, South Africa | |
| 5 | 10,209.86 miles (16,431.14 km) SE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 6 | 10,199.23 miles (16,414.02 km) SE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 7 | 10,132.56 miles (16,306.73 km) SSE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 8 | 10,121.07 miles (16,288.24 km) SE | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 9 | 10,113.28 miles (16,275.70 km) SE | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 10 | 10,102.31 miles (16,258.05 km) SE | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 11 | 10,092.74 miles (16,242.65 km) SSE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |
| 12 | 10,087.37 miles (16,234.01 km) SE | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 13 | 10,086.54 miles (16,232.68 km) SE | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 14 | 10,071.18 miles (16,207.95 km) SE | Mokhotlong Airport (MKH) | Mokhotlong, Lesotho | |
| 15 | 10,066.78 miles (16,200.87 km) SE | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |