Nonstop flight route between Hayden, Colorado, United States and Fort Sill, Oklahoma, United States:
Departure Airport:
(40°28'51"N by 107°13'4"W)
Arrival Airport:
(34°38'58"N by 98°24'7"W)
Distance from HDN to FSI:
628.26 miles (1,011.08 km)
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Jump to:
- About this route
- HDN Airport Information
- FSI Airport Information
- Facts about HDN
- Facts about FSI
- Map of Nearest Airports to HDN
- List of Nearest Airports to HDN
- Map of Furthest Airports from HDN
- List of Furthest Airports from HDN
- Map of Nearest Airports to FSI
- List of Nearest Airports to FSI
- Map of Furthest Airports from FSI
- List of Furthest Airports from FSI
About this route:
A direct, nonstop flight between Yampa Valley Airport (HDN), Hayden, Colorado, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 628 miles (or 1,011 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 Yampa Valley Airport and Henry Post Army Airfield, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | HDN / KHDN |
| Airport Names: |
|
| Location: | Hayden, Colorado, United States |
| GPS Coordinates: | 40°28'51"N by 107°13'4"W |
| Area Served: | Hayden, Colorado |
| Operator/Owner: | Routt County |
| Airport Type: | Public |
| Elevation: | 6606 feet (2,014 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from HDN |
| More Information: | HDN Maps & Info |
Arrival 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 |
Facts about Yampa Valley Airport (HDN):
- In addition to being known as "Yampa Valley Airport", another name for HDN is "Yampa Valley Regional Airport".
- The furthest airport from Yampa Valley Airport (HDN) is Sir Gaëtan Duval Airport (RRG), which is located 10,901 miles (17,543 kilometers) away in Rodrigues Island, Mauritius.
- Yampa Valley Airport (HDN) currently has only 1 runway.
- Because of Yampa Valley Airport's high elevation of 6,606 feet, planes must typically fly at a faster airspeed in order to takeoff or land at HDN. Combined with a high temperature, this could make HDN a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
- The closest airport to Yampa Valley Airport (HDN) is Craig–Moffat Airport (CIG), which is located only 16 miles (26 kilometers) W of HDN.
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.
- 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.
- 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.
- Post Field served as a base for flight training for the Air Service.
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 16.00 miles (25.75 km) W | Craig–Moffat Airport (CIG) | Craig, Colorado, United States |     |
| 2 | 18.62 miles (29.97 km) E | Steamboat Springs Airport (SBS) | Steamboat Springs, Colorado, United States | |
| 3 | 60.07 miles (96.68 km) SSE | Eagle County Regional Airport (EGE) | Eagle, Colorado (near Vail), United States | |
| 4 | 69.68 miles (112.14 km) NNE | Shively Field (SAA) | Saratoga, Wyoming, United States | |
| 5 | 71.26 miles (114.68 km) SSW | Garfield County Regional Airport (RIL) | Rifle, Colorado, United States | |
| 6 | 88.87 miles (143.02 km) SSE | Aspen–Pitkin County Airport (ASE) | Aspen, Colorado, United States | |
| 7 | 91.52 miles (147.28 km) N | Rawlins Municipal Airport (RWL) | Rawlins, Wyoming, United States | |
| 8 | 98.93 miles (159.21 km) NE | Laramie Regional Airport (LAR) | Laramie, Wyoming, United States | |
| 9 | 99.37 miles (159.91 km) SSE | Lake County Airport (LXV) | Leadville, Colorado, United States | |
| 10 | 109.37 miles (176.01 km) ESE | Boulder Municipal Airport (WBU) | Boulder, Colorado, United States | |
| 11 | 115.99 miles (186.67 km) E | Fort Collins-Loveland Municipal Airport (FNL) | Fort Collins/Loveland, Colorado, United States | |
| 12 | 116.78 miles (187.94 km) SW | Grand Junction Regional Airport (GJT) | Grand Junction, Colorado, United States | |
| 13 | 117.70 miles (189.41 km) ESE | Rocky Mountain Metropolitan Airport (BJC) | Denver, Colorado, United States | |
| 14 | 120.53 miles (193.97 km) W | Vernal Regional Airport (VEL) | Vernal, Utah, United States | |
| 15 | 123.22 miles (198.31 km) NW | Rock Springs–Sweetwater County Airport (RKS) | Rock Springs, Wyoming, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,900.54 miles (17,542.67 km) SSE | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 2 | 10,790.61 miles (17,365.76 km) SE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 3 | 10,766.92 miles (17,327.63 km) SE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 4 | 10,745.22 miles (17,292.71 km) SE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 5 | 10,606.97 miles (17,070.21 km) ESE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 6 | 10,487.01 miles (16,877.16 km) ESE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 7 | 10,481.32 miles (16,868.00 km) SE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 8 | 10,439.61 miles (16,800.88 km) ESE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 9 | 10,358.48 miles (16,670.32 km) SE | Toamasino Airport (TMM) | Toamasina, Madagascar | |
| 10 | 10,318.45 miles (16,605.89 km) SE | Sainte Marie Airport (SMS) | Île Sainte-Marie, Madagascar | |
| 11 | 10,317.95 miles (16,605.09 km) SE | Ivato International Airport (TNR) | Antananarivo, Madagascar | |
| 12 | 10,313.25 miles (16,597.53 km) ESE | Manja Airport (MJA) | Manja, Menabe, Madagascar | |
| 13 | 10,298.33 miles (16,573.52 km) ESE | Andavadoaka Airport (DVD) | Andavadoaka, Toliara province, Atsimo-Andrefana region, Madagascar | |
| 14 | 10,286.23 miles (16,554.03 km) ESE | Morombe Airport (MXM) | Morombe, Madagascar | |
| 15 | 10,271.30 miles (16,530.01 km) ESE | Miandrivazo Airport (ZVA) | Miandrivazo, Madagascar | |
| 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 | |