Nonstop flight route between Fort Sill, Oklahoma, United States and Ampara, Sri Lanka:
Departure Airport:
(34°38'58"N by 98°24'7"W)
Arrival Airport:
(7°20'15"N by 81°37'32"E)
Distance from FSI to ADP:
9,535.75 miles (15,346.26 km)
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Jump to:
- About this route
- FSI Airport Information
- ADP Airport Information
- Facts about FSI
- Facts about ADP
- 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 ADP
- List of Nearest Airports to ADP
- Map of Furthest Airports from ADP
- List of Furthest Airports from ADP
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Ampara Airport (ADP), Ampara, Sri Lanka would travel a Great Circle distance of 9,536 miles (or 15,346 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 Ampara 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 Ampara 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: | ADP / VCCG |
| Airport Names: |
|
| Location: | Ampara, Sri Lanka |
| GPS Coordinates: | 7°20'15"N by 81°37'32"E |
| Area Served: | Ampara |
| Operator/Owner: | Government of Sri Lanka |
| Airport Type: | Military/Public |
| Elevation: | 159 feet (48 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from ADP |
| More Information: | ADP Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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.
- 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.
- 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.
- The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
Facts about Ampara Airport (ADP):
- The closest airport to Ampara Airport (ADP) is Batticaloa Airport (BTC), which is located 26 miles (41 kilometers) N of ADP.
- Ampara Airport (ADP) currently has only 1 runway.
- Because of Ampara Airport's relatively low elevation of 159 feet, planes can take off or land at Ampara 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.
- The furthest airport from Ampara Airport (ADP) is Seymour Airport (GPS), which is located 11,703 miles (18,834 kilometers) away in Baltra Island, Galápagos Islands, Ecuador.
- In addition to being known as "Ampara Airport", another name for ADP is "අම්පාර ගුවන්තොටුපළஅம்பாறை விமான நிலையம்".
| 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 | 25.64 miles (41.26 km) N | Batticaloa Airport (BTC) | Batticaloa, Sri Lanka | |
| 2 | 79.54 miles (128.01 km) SSW | Weerawila Airport (WRZ) | Weerawila, Sri Lanka | |
| 3 | 80.23 miles (129.12 km) SSW | Mattala Rajapaksa International Airport (HRI) | Hambantota, Sri Lanka | |
| 4 | 88.42 miles (142.30 km) NNW | China Bay Airport (TRR) | Trincomalee, Sri Lanka | |
| 5 | 105.59 miles (169.94 km) NW | Anuradhapura Airport (ACJ) | Anuradhapura, Sri Lanka | |
| 6 | 119.88 miles (192.94 km) W | Bandaranaike International Airport (CMB) | Colombo, Sri Lanka | |
| 7 | 124.47 miles (200.32 km) WSW | Ratmalana Airport (RML) | Ratmalana, Sri Lanka | |
| 8 | 129.00 miles (207.61 km) SW | Koggala Airport (KCT) | Galle, Sri Lanka | |
| 9 | 200.14 miles (322.10 km) NNW | Jaffna Airport (JAF) | Jaffna, Sri Lanka | |
| 10 | 296.81 miles (477.66 km) NW | Madurai Airport (IXM) | Madurai, India | |
| 11 | 309.29 miles (497.75 km) NW | Tiruchirappalli International Airport (TRZ) | Tiruchirapalli (Trichy), Tamil Nadu, India | |
| 12 | 331.59 miles (533.65 km) WNW | Trivandrum International Airport (TRV) | Trivandrum, Kerala, India | |
| 13 | 342.77 miles (551.64 km) NNW | Puducherry Airport (PNY) | Puducherry, India | |
| 14 | 391.32 miles (629.76 km) NW | Salem Airport (SXV) | Salem, India | |
| 15 | 402.46 miles (647.70 km) NNW | Chennai International Airport (MAA) | Chennai (Madras), India | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,703.13 miles (18,834.32 km) SW | Seymour Airport (GPS) | Baltra Island, Galápagos Islands, Ecuador | |
| 2 | 11,687.79 miles (18,809.63 km) SW | San Cristóbal Airport (SCY) | San Cristóbal Island, Galápagos Islands, Ecuador | |
| 3 | 11,245.07 miles (18,097.14 km) W | Cap. FAP Victor Montes Arias Airport (TYL) | Talara, Peru | |
| 4 | 11,208.42 miles (18,038.15 km) W | Cap. FAP Guillermo Concha Iberico International Airport (PIU) | Piura, Peru | |
| 5 | 11,188.74 miles (18,006.48 km) WSW | General Ulpiano Paez Airport (SNC) | Salinas, Ecuador | |
| 6 | 11,172.13 miles (17,979.76 km) W | Cap. FAP Pedro Canga Rodríguez Airport (TBP) | Tumbes, Peru | |
| 7 | 11,164.61 miles (17,967.66 km) W | Cap. FAP José A. Quiñones González International Airport (CIX) | Chiclayo, Peru | |
| 8 | 11,153.62 miles (17,949.96 km) W | José María Velasco Ibarra Airport (MRR) | Macará, Ecuador | |
| 9 | 11,143.22 miles (17,933.22 km) W | Santa Rosa International Airport (ETR) | Santa Rosa, El Oro, Ecuador | |
| 10 | 11,140.45 miles (17,928.78 km) WSW | Eloy Alfaro International Airport (MEC) | Manta, Manabí, Ecuador | |
| 11 | 11,129.33 miles (17,910.87 km) WSW | Reales Tamarindos Airport (PVO) | Portoviejo, Ecuador | |
| 12 | 11,116.82 miles (17,890.74 km) W | Capitán FAP Carlos Martínez de Pinillos International Airport (TRU) | Trujillo, Peru | |
| 13 | 11,114.70 miles (17,887.34 km) WSW | José Joaquín de Olmedo International Airport (GYE) | Santiago de Guayaquil, Ecuador | |
| 14 | 11,110.27 miles (17,880.21 km) W | Camilo Ponce Enriquez Airport (LOH) | Loja, Ecuador | |
| 15 | 11,073.87 miles (17,821.63 km) W | Teniente FAP Jaime Montreuil Morales Airport (CHM) | Chimbote, Ancash Region, Peru | |