Nonstop flight route between Easton, Washington, United States and Fort Sill, Oklahoma, United States:
Departure Airport:
(47°15'15"N by 121°11'8"W)
Arrival Airport:
(34°38'58"N by 98°24'7"W)
Distance from ESW to FSI:
1,464.67 miles (2,357.15 km)
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- About this route
- ESW Airport Information
- FSI Airport Information
- Facts about ESW
- Facts about FSI
- Map of Nearest Airports to ESW
- List of Nearest Airports to ESW
- Map of Furthest Airports from ESW
- List of Furthest Airports from ESW
- 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 Easton State Airport (ESW), Easton, Washington, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 1,465 miles (or 2,357 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 Easton State 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: | ESW / KESW |
| Airport Name: | Easton State Airport |
| Location: | Easton, Washington, United States |
| GPS Coordinates: | 47°15'15"N by 121°11'8"W |
| Area Served: | Easton, Washington |
| Operator/Owner: | WSDOT Aviation Division |
| Airport Type: | Public |
| Elevation: | 2226 feet (678 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from ESW |
| More Information: | ESW 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 Easton State Airport (ESW):
- Easton State Airport (ESW) currently has only 1 runway.
- Field elevation is 2,226 feet, and density altitude problems can be encountered in the summer.
- The furthest airport from Easton State Airport (ESW) is Tôlanaro Airport (FTU), which is located 10,770 miles (17,332 kilometers) away in Tôlanaro, Madagascar.
- The closest airport to Easton State Airport (ESW) is Bowers Field (ELN), which is located 34 miles (55 kilometers) ESE of ESW.
Facts about Henry Post Army Airfield (FSI):
- Post Field served as a base for flight training for the Air Service.
- 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 Fort Sill Army Radar Approach Control is the Army's Second busiest Air Traffic Control Facility, providing Radar Approach Control service to Henry Post Army Air Field, Lawton/Fort Sill Regional Airport, Duncan/Haliburton Airport and many smaller airports in the area.
- 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.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
- 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.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 34.36 miles (55.30 km) ESE | Bowers Field (ELN) | Ellensburg, Washington, United States |     |
| 2 | 46.95 miles (75.56 km) ENE | Pangborn Memorial Airport (EAT) | Wenatchee, Washington, United States | |
| 3 | 50.95 miles (82.00 km) WNW | Renton Municipal Airport (RNT) | Renton, Washington, United States | |
| 4 | 52.99 miles (85.28 km) SE | Vagabond Army Heliport (closed to fixed-wing aircraft) (FCT) | Yakima, Washington, United States | |
| 5 | 54.30 miles (87.39 km) WNW | Seattle–Tacoma International Airport (SEA) | SeaTac (near Seattle and Tacoma), Washington, United States | |
| 6 | 55.59 miles (89.46 km) WNW | King County International Airport (BFI) | Seattle, Washington, United States | |
| 7 | 56.25 miles (90.52 km) SSE | Yakima Air Terminal (YKM) | Yakima, Washington, United States | |
| 8 | 59.78 miles (96.21 km) WNW | Kenmore Air Harbor Seaplane Base (LKE) | Seattle, Washington, United States | |
| 9 | 60.89 miles (97.99 km) NW | Kenmore Air (KEH) | Kenmore, Washington, United States | |
| 10 | 61.13 miles (98.38 km) W | McChord Field/McChord AFB (TCM) | Tacoma, Washington, United States | |
| 11 | 65.30 miles (105.09 km) W | Tacoma Narrows Airport (TIW) | Tacoma, Washington, United States | |
| 12 | 66.65 miles (107.26 km) W | Gray Army Airfield (GRF) | Tacoma, Washington, United States | |
| 13 | 68.10 miles (109.59 km) NW | Paine Field (PAE) | Everett, Washington, United States | |
| 14 | 75.67 miles (121.78 km) WNW | Bremerton National Airport (PWT) | Bremerton, Washington, United States | |
| 15 | 78.30 miles (126.01 km) E | Ephrata Municipal Airport (EPH) | Ephrata, Washington, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,769.76 miles (17,332.21 km) SSE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 2 | 10,697.12 miles (17,215.30 km) SSE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 3 | 10,635.05 miles (17,115.42 km) S | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 4 | 10,605.87 miles (17,068.45 km) S | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 5 | 10,582.34 miles (17,030.59 km) S | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 6 | 10,552.74 miles (16,982.95 km) ESE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 7 | 10,546.30 miles (16,972.58 km) ESE | East London Airport (ELS) | East London, South Africa | |
| 8 | 10,544.24 miles (16,969.26 km) SSE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 9 | 10,537.42 miles (16,958.29 km) SSE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 10 | 10,527.57 miles (16,942.44 km) ESE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 11 | 10,522.44 miles (16,934.18 km) ESE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 12 | 10,519.80 miles (16,929.93 km) S | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 13 | 10,516.90 miles (16,925.27 km) ESE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |
| 14 | 10,514.93 miles (16,922.10 km) ESE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 15 | 10,496.32 miles (16,892.14 km) SSE | Andavadoaka Airport (DVD) | Andavadoaka, Toliara province, Atsimo-Andrefana region, 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 | |