Nonstop flight route between Fort Sill, Oklahoma, United States and Marathon, Ontario, Canada:
Departure Airport:
(34°38'58"N by 98°24'7"W)
Arrival Airport:
(48°45'25"N by 86°20'44"W)
Distance from FSI to YSP:
1,153.10 miles (1,855.73 km)
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Jump to:
- About this route
- FSI Airport Information
- YSP Airport Information
- Facts about FSI
- Facts about YSP
- 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 YSP
- List of Nearest Airports to YSP
- Map of Furthest Airports from YSP
- List of Furthest Airports from YSP
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Marathon Aerodrome (YSP), Marathon, Ontario, Canada would travel a Great Circle distance of 1,153 miles (or 1,856 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 Marathon Aerodrome, 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: | YSP / CYSP |
| Airport Name: | Marathon Aerodrome |
| Location: | Marathon, Ontario, Canada |
| GPS Coordinates: | 48°45'25"N by 86°20'44"W |
| Operator/Owner: | Corporation of the Town of Marathon |
| Airport Type: | Public |
| Elevation: | 1032 feet (315 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from YSP |
| More Information: | YSP 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.
- 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.
- 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.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- Fort Sill has embarked on a new plan to support the museum in providing a more dynamic learning experience for the 200,000 military and civilian personnel who visit each year.
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
Facts about Marathon Aerodrome (YSP):
- The furthest airport from Marathon Aerodrome (YSP) is Margaret River Airport (MGV), which is located 10,934 miles (17,597 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Marathon Aerodrome (YSP) is Manitouwadge Airport (YMG), which is located 31 miles (51 kilometers) NE of YSP.
- Marathon Aerodrome (YSP) currently has only 1 runway.
| 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 | 31.50 miles (50.69 km) NE | Manitouwadge Airport (YMG) | Manitouwadge, Ontario, Canada | |
| 2 | 34.53 miles (55.56 km) W | Terrace Bay Airport (YTJ) | Terrace Bay, Ontario, Canada | |
| 3 | 75.46 miles (121.44 km) NNW | Geraldton (Greenstone Regional) Airport (YGQ) | Geraldton, Ontario, Canada | |
| 4 | 77.99 miles (125.52 km) ENE | Hornepayne Municipal Airport (YHN) | Hornepayne, Ontario, Canada | |
| 5 | 90.03 miles (144.89 km) SE | Wawa Airport (YXZ) | Wawa, Ontario, Canada | |
| 6 | 99.77 miles (160.57 km) N | Nakina Airport (YQN) | Nakina, Ontario, Canada | |
| 7 | 136.95 miles (220.40 km) ENE | Hearst (René Fontaine) Municipal Airport (YHF) | Hearst, Ontario, Canada | |
| 8 | 138.64 miles (223.12 km) W | Thunder Bay International Airport (YQT) | Thunder Bay, Ontario, Canada | |
| 9 | 147.92 miles (238.06 km) SW | Houghton County Memorial Airport (CMX) | Hancock, Michigan, United States | |
| 10 | 152.30 miles (245.10 km) ESE | Chapleau Airport (YLD) | Chapleau, Ontario, Canada | |
| 11 | 156.33 miles (251.58 km) NW | Armstrong Airport (YYW) | Armstrong, Thunder Bay District, Ontario, Canada | |
| 12 | 173.13 miles (278.62 km) SSW | Sawyer International Airport (MQT) | Marquette, Michigan, United States | |
| 13 | 178.76 miles (287.69 km) SSE | Sault Ste. Marie Airport (YAM) | Sault Ste. Marie, Ontario, Canada | |
| 14 | 181.16 miles (291.55 km) ENE | Kapuskasing Airport (YYU) | Kapuskasing, Ontario, Canada | |
| 15 | 193.98 miles (312.18 km) SSE | Chippewa County International Airport (CIU) | Sault Ste Marie, Michigan, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,934.24 miles (17,596.91 km) SW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 10,912.28 miles (17,561.57 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 3 | 10,910.28 miles (17,558.36 km) SW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 4 | 10,883.69 miles (17,515.56 km) SW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 10,880.97 miles (17,511.18 km) WSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 6 | 10,824.89 miles (17,420.93 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 7 | 10,815.28 miles (17,405.46 km) SW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 8 | 10,807.80 miles (17,393.43 km) SW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 9 | 10,796.17 miles (17,374.71 km) SW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 10 | 10,738.04 miles (17,281.15 km) SW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 10,663.68 miles (17,161.48 km) SW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 10,656.98 miles (17,150.71 km) WSW | Esperance Airport (EPR) | Esperance, Australia | |
| 13 | 10,642.39 miles (17,127.23 km) SW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 10,618.05 miles (17,088.05 km) SW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,613.74 miles (17,081.11 km) SW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |