Nonstop flight route between Fort Sill, Oklahoma, United States and Havre, Montana, United States:
Departure Airport:
(34°38'58"N by 98°24'7"W)
Arrival Airport:
(48°32'35"N by 109°45'43"W)
Distance from FSI to HVR:
1,122.42 miles (1,806.35 km)
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- About this route
- FSI Airport Information
- HVR Airport Information
- Facts about FSI
- Facts about HVR
- 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 HVR
- List of Nearest Airports to HVR
- Map of Furthest Airports from HVR
- List of Furthest Airports from HVR
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Havre City-County Airport (HVR), Havre, Montana, United States would travel a Great Circle distance of 1,122 miles (or 1,806 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 Havre City-County 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: | HVR / KHVR |
| Airport Name: | Havre City-County Airport |
| Location: | Havre, Montana, United States |
| GPS Coordinates: | 48°32'35"N by 109°45'43"W |
| Area Served: | Havre, Montana |
| Operator/Owner: | City of Havre & Hill County |
| Airport Type: | Public |
| Elevation: | 2591 feet (790 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from HVR |
| More Information: | HVR Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- With the end of World War I, in October 1919 Post Field was deactivated as an active duty airfield in accordance with sharply reduced military budgets, and a small caretaker unit was assigned to the facility for administrative reasons to support the balloon school/company.
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- 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.
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- 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.
- 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.
- Post Field served as a base for flight training for the Air Service.
Facts about Havre City-County Airport (HVR):
- Havre City-County Airport (HVR) has 2 runways.
- The furthest airport from Havre City-County Airport (HVR) is Sir Gaëtan Duval Airport (RRG), which is located 10,411 miles (16,755 kilometers) away in Rodrigues Island, Mauritius.
- As per the Federal Aviation Administration, this airport had 180 passenger boardings in calendar year 2008, 744 in 2009, and 961 in 2010.
- The closest airport to Havre City-County Airport (HVR) is Shelby Airport (SBX), which is located 96 miles (155 kilometers) W of HVR.
- Scheduled air service temporarily ceased on March 8, 2008, when Big Sky Airlines ended operations in bankruptcy.
| 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 | 96.47 miles (155.25 km) W | Shelby Airport (SBX) | Shelby, Montana, United States | |
| 2 | 97.38 miles (156.72 km) SW | Malmstrom Air Force Base (GFA) | Great Falls, Montana, United States | |
| 3 | 104.13 miles (167.57 km) S | Lewistown Municipal Airport (LWT) | Lewistown, Montana, United States | |
| 4 | 104.37 miles (167.96 km) SW | Great Falls International Airport (GTF) | Great Falls, Montana, United States | |
| 5 | 110.74 miles (178.22 km) NNW | Medicine Hat Airport (YXH) | Medicine Hat, Alberta, Canada | |
| 6 | 119.57 miles (192.43 km) W | Cut Bank Municipal AirportCut Bank Army Air Field (CTB) | Cut Bank, Montana, United States | |
| 7 | 135.37 miles (217.85 km) NNW | CFB Suffield (YSD) | Suffield, Alberta, Canada | |
| 8 | 146.23 miles (235.34 km) E | Glasgow International Airport (GGW) | Glasgow, Montana, United States | |
| 9 | 152.56 miles (245.52 km) NE | Swift Current Airport (YYN) | Swift Current, Saskatchewan, Canada | |
| 10 | 153.79 miles (247.50 km) SSE | Roundup Airport (RPX) | Roundup, Montana, United States | |
| 11 | 154.74 miles (249.03 km) ESE | Jordan Airport (JDN) | Jordan, Montana, United States | |
| 12 | 156.62 miles (252.05 km) WNW | Lethbridge Airport (YQL) | Lethbridge, Alberta, Canada | |
| 13 | 169.14 miles (272.20 km) SW | Helena Regional Airport (HLN) | Helena, Montana, United States | |
| 14 | 194.84 miles (313.57 km) E | L. M. Clayton Airport (OLF) | Wolf Point, Montana, United States | |
| 15 | 197.47 miles (317.80 km) SSE | Billings Logan International Airport (BIL) | Billings, Montana, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,411.36 miles (16,755.42 km) SSE | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 2 | 10,385.68 miles (16,714.09 km) SSE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 3 | 10,381.13 miles (16,706.76 km) SE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 4 | 10,373.20 miles (16,694.00 km) SSE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 5 | 10,359.60 miles (16,672.12 km) SSE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 6 | 10,286.25 miles (16,554.07 km) SE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 7 | 10,194.47 miles (16,406.37 km) SE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 8 | 10,171.39 miles (16,369.22 km) SE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 9 | 10,085.73 miles (16,231.37 km) SE | Andavadoaka Airport (DVD) | Andavadoaka, Toliara province, Atsimo-Andrefana region, Madagascar | |
| 10 | 10,080.27 miles (16,222.58 km) SE | Manja Airport (MJA) | Manja, Menabe, Madagascar | |
| 11 | 10,068.45 miles (16,203.56 km) SE | Morombe Airport (MXM) | Morombe, Madagascar | |
| 12 | 10,031.52 miles (16,144.12 km) SE | Toamasino Airport (TMM) | Toamasina, Madagascar | |
| 13 | 10,027.54 miles (16,137.72 km) ESE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 14 | 10,020.48 miles (16,126.36 km) SE | Ivato International Airport (TNR) | Antananarivo, Madagascar | |
| 15 | 10,012.80 miles (16,114.01 km) E | East London Airport (ELS) | East London, South Africa | |