Nonstop flight route between Fort Sill, Oklahoma, United States and Ranong, Thailand:
Departure Airport:
(34°38'58"N by 98°24'7"W)
Arrival Airport:
(9°46'38"N by 98°35'7"E)
Distance from FSI to UNN:
9,171.96 miles (14,760.81 km)
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Jump to:
- About this route
- FSI Airport Information
- UNN Airport Information
- Facts about FSI
- Facts about UNN
- 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 UNN
- List of Nearest Airports to UNN
- Map of Furthest Airports from UNN
- List of Furthest Airports from UNN
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Ranong Airport (UNN), Ranong, Thailand would travel a Great Circle distance of 9,172 miles (or 14,761 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 Ranong 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 Ranong 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: | UNN / VTSR |
| Airport Name: | Ranong Airport |
| Location: | Ranong, Thailand |
| GPS Coordinates: | 9°46'38"N by 98°35'7"E |
| Area Served: | Tambon Ratchakrut, Amphoe Mueang Ranong, Ranong, Thailand |
| Operator/Owner: | Government |
| Elevation: | 57 feet (17 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from UNN |
| More Information: | UNN 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.
- Henry Post Army Airfield was the first home of all Army Aviation Training after World War II before moving to Fort Rucker, Alabama in 1954.
- 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.
- 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.
- Air Service/Corps units assigned to Post Field between 1919 and 1941
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
Facts about Ranong Airport (UNN):
- The closest airport to Ranong Airport (UNN) is Kawthaung Airport (KAW), which is located only 19 miles (31 kilometers) N of UNN.
- The furthest airport from Ranong Airport (UNN) is Capitán FAP Carlos Martínez de Pinillos International Airport (TRU), which is nearly antipodal to Ranong Airport (meaning Ranong Airport is almost on the exact opposite side of the Earth from Capitán FAP Carlos Martínez de Pinillos International Airport), and is located 12,241 miles (19,699 kilometers) away in Trujillo, Peru.
- Because of Ranong Airport's relatively low elevation of 57 feet, planes can take off or land at Ranong Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
- Ranong Airport (UNN) 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 | 19.05 miles (30.66 km) N | Kawthaung Airport (KAW) | Kawthaung, Myanmar (Burma) | |
| 2 | 58.25 miles (93.74 km) SE | Surat Thani International Airport (URT) | Surat Thani, Thailand | |
| 3 | 83.36 miles (134.15 km) NE | Chumphon Airport (CJM) | Chumphon, Thailand | |
| 4 | 101.84 miles (163.90 km) E | Samui International Airport (USM) | Ko Samui, Surat Thani, Thailand | |
| 5 | 116.45 miles (187.41 km) S | Phuket International Airport (HKT) | Phuket, Thailand | |
| 6 | 119.01 miles (191.53 km) SSE | Krabi International Airport (KBV) | Krabi, Thailand | |
| 7 | 171.86 miles (276.57 km) SSE | Trang Airport (TST) | Trang, Thailand | |
| 8 | 183.96 miles (296.05 km) N | Myeik Airport (MGZ) | Myeik, Myanmar (Burma) | |
| 9 | 218.13 miles (351.05 km) NNE | Hua Hin Airport (HHQ) | Hua Hin, Thailand | |
| 10 | 232.14 miles (373.59 km) SSE | Hat Yai International Airport (HDY) | Hat Yai, Songkhla Province, Thailand | |
| 11 | 250.59 miles (403.29 km) SSE | Langkawi International Airport (LGK) | Langkawi, Kedah, Malaysia | |
| 12 | 259.03 miles (416.86 km) NE | U-Tapao-Rayong-Pattaya International Airport (UTP) | Rayong, Thailand | |
| 13 | 271.23 miles (436.50 km) SE | Pattani Airport (PAN) | Pattani, Thailand | |
| 14 | 276.98 miles (445.75 km) SSE | Sultan Abdul Halim Airport (AOR) | Alor Star, Kedah, Malaysia | |
| 15 | 300.02 miles (482.83 km) N | Dawei Airport (TVY) | Dawei, Myanmar (Burma) | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,240.56 miles (19,699.23 km) SW | Capitán FAP Carlos Martínez de Pinillos International Airport (TRU) | Trujillo, Peru | |
| 2 | 12,235.06 miles (19,690.38 km) WSW | Teniente FAP Jaime Montreuil Morales Airport (CHM) | Chimbote, Ancash Region, Peru | |
| 3 | 12,203.45 miles (19,639.49 km) SSW | Cap. FAP José A. Quiñones González International Airport (CIX) | Chiclayo, Peru | |
| 4 | 12,175.08 miles (19,593.85 km) W | Comandante FAP Germán Arias Graziani Airport (ATA) | Huaraz, Peru | |
| 5 | 12,166.25 miles (19,579.63 km) SW | Mayor General FAP Armando Revoredo Iglesias (CJA) | Cajamarca, Peru | |
| 6 | 12,115.84 miles (19,498.50 km) S | Cap. FAP Guillermo Concha Iberico International Airport (PIU) | Piura, Peru | |
| 7 | 12,106.41 miles (19,483.32 km) WSW | Jorge Chávez International Airport (LIM) | Callao (near Lima), Peru | |
| 8 | 12,089.95 miles (19,456.84 km) SW | Chachapoyas Airport (CHH) | Chachapoyas, Peru | |
| 9 | 12,082.04 miles (19,444.12 km) W | Alf. FAP David Figueroa Fernandini (HUU) | Huánuco, Huánuco Region, Peru | |
| 10 | 12,077.27 miles (19,436.43 km) S | Cap. FAP Victor Montes Arias Airport (TYL) | Talara, Peru | |
| 11 | 12,069.41 miles (19,423.78 km) WSW | Juanjuí Airport (JJI) | Juanjuí, Peru | |
| 12 | 12,066.61 miles (19,419.29 km) W | Tingo María Airport (TGI) | Tingo María, Peru | |
| 13 | 12,050.30 miles (19,393.03 km) SSW | José María Velasco Ibarra Airport (MRR) | Macará, Ecuador | |
| 14 | 12,013.48 miles (19,333.78 km) SSW | Camilo Ponce Enriquez Airport (LOH) | Loja, Ecuador | |
| 15 | 12,010.42 miles (19,328.84 km) WSW | Jauja AirportFrancisco Carle Airport (JAU) | Jauja, Peru | |