Nonstop flight route between Fort Sill, Oklahoma, United States and Smithers, British Columbia, Canada:
Departure Airport:
(34°38'58"N by 98°24'7"W)
Arrival Airport:
(54°49'31"N by 127°10'58"W)
Distance from FSI to YYD:
1,958.50 miles (3,151.89 km)
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Jump to:
- About this route
- FSI Airport Information
- YYD Airport Information
- Facts about FSI
- Facts about YYD
- 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 YYD
- List of Nearest Airports to YYD
- Map of Furthest Airports from YYD
- List of Furthest Airports from YYD
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Smithers Regional Airport (YYD), Smithers, British Columbia, Canada would travel a Great Circle distance of 1,958 miles (or 3,152 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 Smithers Regional 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: | YYD / CYYD |
| Airport Name: | Smithers Regional Airport |
| Location: | Smithers, British Columbia, Canada |
| GPS Coordinates: | 54°49'31"N by 127°10'58"W |
| Area Served: | Smithers, Bulkley Valley |
| Operator/Owner: | Town of Smithers |
| Airport Type: | Public |
| Elevation: | 1716 feet (523 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from YYD |
| More Information: | YYD Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- 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.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
- 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 field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
Facts about Smithers Regional Airport (YYD):
- Smithers Regional Airport (YYD) currently has only 1 runway.
- The closest airport to Smithers Regional Airport (YYD) is Burns Lake Airport (YPZ), which is located 58 miles (94 kilometers) ESE of YYD.
- The furthest airport from Smithers Regional Airport (YYD) is Port Alfred Airport (AFD), which is located 10,507 miles (16,909 kilometers) away in Port Alfred, South Africa.
- NavCanada operates a Flight Service Station at Smithers Airport.
| 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 | 58.23 miles (93.71 km) ESE | Burns Lake Airport (YPZ) | Burns Lake, British Columbia, Canada | |
| 2 | 60.99 miles (98.15 km) WSW | Northwest Regional Airport Terrace-Kitimat (YXT) | Terrace, British Columbia and Kitimat, British Columbia, Canada | |
| 3 | 128.34 miles (206.55 km) SW | Hartley Bay Water Aerodrome (YTB) | Hartley Bay, British Columbia, Canada | |
| 4 | 128.71 miles (207.14 km) WSW | Prince Rupert/Seal Cove Water Airport (ZSW) | Prince Rupert, British Columbia, Canada | |
| 5 | 133.57 miles (214.96 km) NW | Hyder Seaplane Base (WHD) | Hyder, Alaska, United States | |
| 6 | 133.93 miles (215.53 km) NW | Stewart Aerodrome (ZST) | Stewart, British Columbia, Canada | |
| 7 | 135.90 miles (218.70 km) WSW | Prince Rupert Airport (YPR) | Prince Rupert, British Columbia, Canada | |
| 8 | 148.91 miles (239.65 km) WSW | Kitkatla Water Aerodrome (YKK) | Kitkatla, British Columbia, Canada | |
| 9 | 170.14 miles (273.82 km) S | Bella Coola Airport (QBC) | Bella Coola, British Columbia, Canada | |
| 10 | 171.26 miles (275.61 km) S | Ocean Falls Water Aerodrome (ZOF) | Ocean Falls, British Columbia, Canada | |
| 11 | 174.86 miles (281.40 km) W | Annette Island Airport (ANN) | Annette Island, Alaska, United States | |
| 12 | 175.53 miles (282.48 km) W | Metlakatla Seaplane Base (MTM) | Metlakatla, Annette Island, Alaska, United States | |
| 13 | 180.75 miles (290.89 km) WNW | Ketchikan Harbor Seaplane Base (WFB) | Ketchikan, Alaska, United States | |
| 14 | 181.17 miles (291.56 km) SSE | Anahim Lake Airport (YAA) | Anahim Lake, British Columbia, Canada | |
| 15 | 182.71 miles (294.05 km) WNW | Ketchikan International Airport (KTN) | Ketchikan, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,506.99 miles (16,909.32 km) SE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 2 | 10,505.29 miles (16,906.59 km) SE | East London Airport (ELS) | East London, South Africa | |
| 3 | 10,491.90 miles (16,885.04 km) SE | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 4 | 10,446.28 miles (16,811.62 km) SE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 5 | 10,441.54 miles (16,803.99 km) SE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 6 | 10,389.62 miles (16,720.43 km) SE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 7 | 10,386.88 miles (16,716.02 km) ESE | George Airport (GRJ) | George, South Africa | |
| 8 | 10,372.89 miles (16,693.51 km) SE | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 9 | 10,359.53 miles (16,672.01 km) SE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |
| 10 | 10,357.06 miles (16,668.03 km) S | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 11 | 10,340.46 miles (16,641.31 km) SE | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 12 | 10,323.82 miles (16,614.54 km) SE | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 13 | 10,320.48 miles (16,609.16 km) SE | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 14 | 10,317.65 miles (16,604.61 km) SE | Hluhluwe Airport (HLW) | Hluhluwe, South Africa | |
| 15 | 10,314.65 miles (16,599.77 km) SSE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |