Nonstop flight route between Fort Sill, Oklahoma, United States and Xi'an, Shaanxi, China:
Departure Airport:
(34°38'58"N by 98°24'7"W)
Arrival Airport:
(34°22'36"N by 109°7'12"E)
Distance from FSI to SIA:
7,346.41 miles (11,822.87 km)
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Jump to:
- About this route
- FSI Airport Information
- SIA Airport Information
- Facts about FSI
- Facts about SIA
- 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 SIA
- List of Nearest Airports to SIA
- Map of Furthest Airports from SIA
- List of Furthest Airports from SIA
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Xi'an Xiguan Airport (SIA), Xi'an, Shaanxi, China would travel a Great Circle distance of 7,346 miles (or 11,823 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 large distance between Henry Post Army Airfield and Xi'an Xiguan Airport, the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between Henry Post Army Airfield and Xi'an Xiguan Airport. You'll see that it will travel the same route of the red line on this map!
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: | SIA / ZLSN |
| Airport Names: |
|
| Location: | Xi'an, Shaanxi, China |
| GPS Coordinates: | 34°22'36"N by 109°7'12"E |
| Area Served: | Xi'an |
| Airport Type: | Public (defunct) |
| # of Runways: | 1 |
| View all routes: | Routes from SIA |
| More Information: | SIA Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
- 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 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
Facts about Xi'an Xiguan Airport (SIA):
- In addition to being known as "Xi'an Xiguan Airport", other names for SIA include "西安西关机场" and "Xī'ān Xīguān Jīchǎng".
- The furthest airport from Xi'an Xiguan Airport (SIA) is La Unión Airport (LUI), which is nearly antipodal to Xi'an Xiguan Airport (meaning Xi'an Xiguan Airport is almost on the exact opposite side of the Earth from La Unión Airport), and is located 12,392 miles (19,943 kilometers) away in La Unión, Honduras[disambiguation needed].
- The closest airport to Xi'an Xiguan Airport (SIA) is Xi'an Xianyang International Airport (XIY), which is located 22 miles (35 kilometers) WNW of SIA.
- Xi'an Xiguan Airport (SIA) 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 | 21.57 miles (34.71 km) WNW | Xi'an Xianyang International Airport (XIY) | Xianyang, Shaanxi, China | |
| 2 | 115.80 miles (186.36 km) S | Ankang Wulipu Airport (AKA) | Ankang, Shaanxi, China | |
| 3 | 120.38 miles (193.73 km) ENE | Yuncheng Guangong Airport (YCU) | Yuncheng, China | |
| 4 | 130.48 miles (209.98 km) NW | Qingyang Airport (IQN) | Qingyang, Gansu, China | |
| 5 | 151.52 miles (243.85 km) SW | Hanzhong Xiguan Airport (HZG) | Hanzhong, Shaanxi, China | |
| 6 | 158.06 miles (254.38 km) N | Yan'an Airport (ENY) | Yan'an, Shaanxi, China | |
| 7 | 187.66 miles (302.01 km) E | Luoyang Beijiao Airport (LYA) | Luoyang, Henan, China | |
| 8 | 202.24 miles (325.47 km) SSE | Shennongjia Hongping Airport (HPG) | Shennongjia, Hubei, China | |
| 9 | 222.89 miles (358.71 km) ESE | Nanyang Jiangying Airport (NNY) | Nanyang, Henan, China | |
| 10 | 239.18 miles (384.93 km) SE | Xiangyang Liuji Airport (XFN) | Xiangfan, Hubei, China | |
| 11 | 240.20 miles (386.56 km) SW | Guangyuan Airport (GYS) | Guangyuan, Sichuan, China | |
| 12 | 244.79 miles (393.96 km) SSW | Dazhou Heshi Airport (DAX) | Dazhou, Sichuan, China | |
| 13 | 250.50 miles (403.15 km) S | Wanzhou Wuqiao Airport (WXN) | Wanzhou, Chongqing, China | |
| 14 | 254.88 miles (410.19 km) NNE | Lüliang Airport (LLV) | Lüliang, Shanxi, China | |
| 15 | 260.20 miles (418.75 km) ENE | Changzhi Wangcun Airport (CIH) | Changzhi, Shanxi, China | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,392.06 miles (19,943.05 km) E | La Unión Airport (LUI) | La Unión, Honduras[disambiguation needed] | |
| 2 | 12,368.60 miles (19,905.29 km) S | Comodoro Arturo Merino Benítez International Airport (SCL) | Santiago, Chile | |
| 3 | 12,332.37 miles (19,846.98 km) SSE | Viña del Mar Airport (KNA) | Viña del Mar, Chile | |
| 4 | 12,329.92 miles (19,843.03 km) SW | Comodoro D. Ricardo Salomón Airport (LGS) | Malargüe, Mendoza, Argentina | |
| 5 | 12,295.01 miles (19,786.85 km) W | San Rafael Airport (AFA) | San Rafael, Mendoza, Argentina | |
| 6 | 12,276.11 miles (19,756.44 km) SW | Governor Francisco Gabrielli International Airport (MDZ) | Mendoza, Mendoza Province, Argentina | |
| 7 | 12,271.20 miles (19,748.53 km) SSE | General Bernardo O'Higgins Airport (YAI) | Chillán, Ñuble, Chile | |
| 8 | 12,230.77 miles (19,683.46 km) SE | Carriel Sur International Airport (CCP) | Concepción, Bío Bío Region, Chile | |
| 9 | 12,221.65 miles (19,668.79 km) S | Chos Malal Airport (HOS) | Chos Malal, Neuquén, Argentina | |
| 10 | 12,199.13 miles (19,632.55 km) SW | Domingo Faustino Sarmiento Airport (UAQ) | San Juan Province, Argentina | |
| 11 | 12,196.62 miles (19,628.50 km) S | Caviahue Airport (CVH) | Caviahue, Neuquén, Argentina | |
| 12 | 12,165.96 miles (19,579.17 km) WSW | Brigadier Mayor Cesar Raúl Ojeda Airport (LUQ) | San Luis, Argentina | |
| 13 | 12,157.27 miles (19,565.18 km) SSE | Victoria Airport (ZIC) | Victoria, Araucanía, Chile | |
| 14 | 12,139.41 miles (19,536.44 km) SW | Colonia Catriel Airport (CCT) | Colonia Catriel, Río Negro, Argentina | |
| 15 | 12,128.04 miles (19,518.14 km) S | La Florida Airport (LSC) | La Serena, Chile | |