Nonstop flight route between Seiyun, Yemen and Fort Sill, Oklahoma, United States:
Departure Airport:
(15°57'57"N by 48°47'17"E)
Arrival Airport:
(34°38'58"N by 98°24'7"W)
Distance from GXF to FSI:
8,329.46 miles (13,404.94 km)
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Jump to:
- About this route
- GXF Airport Information
- FSI Airport Information
- Facts about GXF
- Facts about FSI
- Map of Nearest Airports to GXF
- List of Nearest Airports to GXF
- Map of Furthest Airports from GXF
- List of Furthest Airports from GXF
- 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 Sayun AirportSeiyun Airport (GXF), Seiyun, Yemen and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 8,329 miles (or 13,405 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 Sayun AirportSeiyun Airport and Henry Post Army Airfield, 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 Sayun AirportSeiyun Airport and Henry Post Army Airfield. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | GXF / OYSY |
| Airport Name: | Sayun AirportSeiyun Airport |
| Location: | Seiyun, Yemen |
| GPS Coordinates: | 15°57'57"N by 48°47'17"E |
| Area Served: | Sayun |
| Airport Type: | Public |
| Elevation: | 2097 feet (639 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from GXF |
| More Information: | GXF 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 Sayun AirportSeiyun Airport (GXF):
- The closest airport to Sayun AirportSeiyun Airport (GXF) is Riyan Airport (MKX), which is located 98 miles (158 kilometers) SSE of GXF.
- The furthest airport from Sayun AirportSeiyun Airport (GXF) is Pukarua Airport (PUK), which is nearly antipodal to Sayun AirportSeiyun Airport (meaning Sayun AirportSeiyun Airport is almost on the exact opposite side of the Earth from Pukarua Airport), and is located 12,021 miles (19,346 kilometers) away in Pukarua, Tuamotus, French Polynesia.
- Sayun AirportSeiyun Airport (GXF) currently has only 1 runway.
Facts about Henry Post Army Airfield (FSI):
- The first Army aviation at Fort Sill began on 26 July 1915 when eight Curtiss JN-3 airplanes of the 1st Aero Squadron arrived from Rockwell Field, California.
- 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.
- 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.
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 98.20 miles (158.03 km) SSE | Riyan Airport (MKX) | Mukalla, Yemen |     |
| 2 | 163.28 miles (262.77 km) SW | Ataq Airport (AXK) | Ataq, Yemen | |
| 3 | 220.16 miles (354.31 km) WSW | Beihan Airport (BHN) | Beihan, Yemen | |
| 4 | 225.35 miles (362.67 km) E | Al Ghaydha Airport (AAY) | Al Ghaydah, Yemen | |
| 5 | 305.71 miles (491.98 km) W | El Rahaba Airport (Sana'a International) (SAH) | Sana'a, Yemen | |
| 6 | 306.49 miles (493.25 km) SSE | Alula Airport (ALU) | Alula, Somalia | |
| 7 | 310.53 miles (499.75 km) WNW | Najran Domestic Airport (EAM) | Najran (Nejran), Saudi Arabia | |
| 8 | 317.98 miles (511.74 km) SSE | Candala Airport (CXN) | Candala, Somalia | |
| 9 | 325.00 miles (523.03 km) S | Bender Qassim International Airport (BSA) | Boosaaso, Somalia | |
| 10 | 332.02 miles (534.34 km) SW | Aden International Airport (ADE) | Aden, Yemen | |
| 11 | 348.17 miles (560.32 km) WSW | Ta'izz International Airport (TAI) | Ta'izz, Yemen | |
| 12 | 359.10 miles (577.92 km) ENE | Salalah Airport (SLL) | Salalah, Oman | |
| 13 | 379.69 miles (611.05 km) SSW | Erigavo Airport (ERA) | Erigavo, Somalia | |
| 14 | 396.16 miles (637.55 km) WSW | Hodeida International Airport (HOD) | Al Hudaydah (Hodeida), Yemen | |
| 15 | 434.28 miles (698.90 km) WNW | Abha Regional Airport (AHB) | Abha / Khamis Mushait, Saudi Arabia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,021.13 miles (19,346.08 km) ESE | Pukarua Airport (PUK) | Pukarua, Tuamotus, French Polynesia | |
| 2 | 11,889.98 miles (19,135.02 km) SSE | Totegegie Airport (GMR) | Mangareva, Gambier Islands, French Polynesia | |
| 3 | 11,888.81 miles (19,133.14 km) ESE | Nukutavake Airport (NUK) | Nukutavake, Tuamotus, French Polynesia | |
| 4 | 11,851.58 miles (19,073.22 km) SE | Tureira Airport (ZTA) | Tureia, Tuamotus, French Polynesia | |
| 5 | 11,793.85 miles (18,980.32 km) E | Fangatau Airport (FGU) | Fangatau, French Polynesia | |
| 6 | 11,777.52 miles (18,954.04 km) ESE | Hao Airport (HOI) | Hao, Tuamotu Island, French Polynesia | |
| 7 | 11,759.20 miles (18,924.54 km) SE | Atuona Airport (AUQ) | Atuona, Marquesas Islands, French Polynesia | |
| 8 | 11,688.71 miles (18,811.11 km) E | Raroia Airport (RRR) | Raroia, French Polynesia | |
| 9 | 11,610.57 miles (18,685.35 km) E | Makemo Airport (MKP) | Makemo, French Polynesia | |
| 10 | 11,485.63 miles (18,484.28 km) E | Anaa Airport (AAA) | Anaa, Tuamotus, French Polynesia | |
| 11 | 11,477.63 miles (18,471.41 km) E | Fakarava Airport (FAV) | Fakarava, Society Islands, French Polynesia | |
| 12 | 11,440.69 miles (18,411.95 km) E | Manihi Airport (XMH) | Manihi, French Polynesia | |
| 13 | 11,428.26 miles (18,391.96 km) E | Ahe Airport (AHE) | Ahe, French Polynesia | |
| 14 | 11,425.83 miles (18,388.04 km) E | Apataki Airport (APK) | Apataki, French Polynesia | |
| 15 | 11,410.46 miles (18,363.31 km) E | Arutua Airport (AXR) | Arutua, Tuamotus, French Polynesia | |
| 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 | |