Nonstop flight route between Fort Sill, Oklahoma, United States and Rainbow Lake, Alberta, Canada:
Departure Airport:
(34°38'58"N by 98°24'7"W)
Arrival Airport:
(58°29'29"N by 119°24'28"W)
Distance from FSI to YOP:
1,907.90 miles (3,070.47 km)
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Jump to:
- About this route
- FSI Airport Information
- YOP Airport Information
- Facts about FSI
- Facts about YOP
- 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 YOP
- List of Nearest Airports to YOP
- Map of Furthest Airports from YOP
- List of Furthest Airports from YOP
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Rainbow Lake Airport (YOP), Rainbow Lake, Alberta, Canada would travel a Great Circle distance of 1,908 miles (or 3,070 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 Rainbow 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: | YOP / CYOP |
| Airport Name: | Rainbow Lake Airport |
| Location: | Rainbow Lake, Alberta, Canada |
| GPS Coordinates: | 58°29'29"N by 119°24'28"W |
| Operator/Owner: | Town of Rainbow Lake |
| Airport Type: | Public |
| Elevation: | 1756 feet (535 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from YOP |
| More Information: | YOP Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- 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.
- Air Service/Corps units assigned to Post Field between 1919 and 1941
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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.
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
- 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.
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- 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 Rainbow Lake Airport (YOP):
- Rainbow Lake Airport (YOP) currently has only 1 runway.
- The closest airport to Rainbow Lake Airport (YOP) is High Level Airport (YOJ), which is located 81 miles (131 kilometers) E of YOP.
- The furthest airport from Rainbow Lake Airport (YOP) is Port Alfred Airport (AFD), which is located 10,120 miles (16,286 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 | 81.34 miles (130.91 km) E | High Level Airport (YOJ) | High Level, Alberta, Canada | |
| 2 | 117.04 miles (188.35 km) WNW | Northern Rockies Regional Airport (YYE) | Fort Nelson, British Columbia, Canada | |
| 3 | 163.39 miles (262.95 km) SSW | Fort St. John Airport (YXJ) | Fort St. John, British Columbia, Canada | |
| 4 | 170.44 miles (274.29 km) SSE | Fairview Airport (ZFW) | Fairview, Alberta, Canada | |
| 5 | 172.62 miles (277.81 km) SSE | Peace River Airport (YPE) | Peace River, Alberta, Canada | |
| 6 | 186.97 miles (300.90 km) NW | Fort Liard Airport (YJF) | Fort Liard, Northwest Territories, Canada | |
| 7 | 192.16 miles (309.25 km) S | Dawson Creek Airport (YDQ) | Dawson Creek, British Columbia, Canada | |
| 8 | 194.90 miles (313.66 km) SSW | Hudson's Hope Airport (YNH) | Hudson's Hope, British Columbia, Canada | |
| 9 | 205.67 miles (331.00 km) NE | Hay River/Merlyn Carter Airport (YHY) | Hay River, Northwest Territories, Canada | |
| 10 | 210.87 miles (339.36 km) SSW | Chetwynd Airport (YCQ) | Chetwynd, British Columbia, Canada | |
| 11 | 210.89 miles (339.39 km) SSE | Donnelly Airport (YOE) | Donnelly, Alberta, Canada | |
| 12 | 229.65 miles (369.58 km) S | Grande Prairie Airport (YQU) | Grande Prairie, Alberta, Canada | |
| 13 | 234.44 miles (377.30 km) NNW | Fort Simpson Airport (YFS) | Fort Simpson, Northwest Territories, Canada | |
| 14 | 271.74 miles (437.32 km) NE | Fort Resolution Airport (YFR) | Fort Resolution, Northwest Territories, Canada | |
| 15 | 281.60 miles (453.19 km) SE | Slave Lake Airport (YZH) | Slave Lake, Alberta, Canada | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,119.60 miles (16,285.88 km) ESE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 2 | 10,117.11 miles (16,281.87 km) SE | East London Airport (ELS) | East London, South Africa | |
| 3 | 10,105.97 miles (16,263.94 km) ESE | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 4 | 10,058.21 miles (16,187.08 km) SE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 5 | 10,052.93 miles (16,178.59 km) SE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 6 | 10,031.23 miles (16,143.66 km) SSE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 7 | 10,005.38 miles (16,102.06 km) ESE | George Airport (GRJ) | George, South Africa | |
| 8 | 10,002.60 miles (16,097.59 km) SE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 9 | 9,985.29 miles (16,069.73 km) SE | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 10 | 9,976.33 miles (16,055.30 km) SSE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 11 | 9,974.09 miles (16,051.71 km) SE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |
| 12 | 9,951.97 miles (16,016.11 km) SE | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 13 | 9,935.29 miles (15,989.27 km) SE | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 14 | 9,932.96 miles (15,985.51 km) SE | Hluhluwe Airport (HLW) | Hluhluwe, South Africa | |
| 15 | 9,931.90 miles (15,983.80 km) SE | Semonkong Airport (SOK) | Semonkong, Lesotho | |