Nonstop flight route between Fort Sill, Oklahoma, United States and Lismore, New South Wales, Australia:
Departure Airport:

Arrival Airport:

Distance from FSI to LSY:
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- About this route
- FSI Airport Information
- LSY Airport Information
- Facts about FSI
- Facts about LSY
- 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 LSY
- List of Nearest Airports to LSY
- Map of Furthest Airports from LSY
- List of Furthest Airports from LSY
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Lismore Airport (LSY), Lismore, New South Wales, Australia would travel a Great Circle distance of 8,295 miles (or 13,350 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 Lismore 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 Lismore 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: | LSY / YLIS |
Airport Name: | Lismore Airport |
Location: | Lismore, New South Wales, Australia |
GPS Coordinates: | 28°49'41"S by 153°15'35"E |
Operator/Owner: | Lismore City Council |
Airport Type: | Public |
Elevation: | 35 feet (11 meters) |
# of Runways: | 1 |
View all routes: | Routes from LSY |
More Information: | LSY Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- 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.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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.
- 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.
- After returning from combat duty in France, a cadre of the 135th Aero Squadron ) was assigned to Post Field as an observation squadron, supplying aircraft for the United States Army Field Artillery School at Fort Sill and supported Army units at Fort Leavenworth, Kansas.
- 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 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.
Facts about Lismore Airport (LSY):
- Because of Lismore Airport's relatively low elevation of 35 feet, planes can take off or land at Lismore 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 closest airport to Lismore Airport (LSY) is Ballina Byron Gateway Airport (BNK), which is located only 18 miles (29 kilometers) E of LSY.
- Lismore Airport (LSY) currently has only 1 runway.
- The furthest airport from Lismore Airport (LSY) is La Palma Airport (SPC), which is located 11,892 miles (19,139 kilometers) away in La Palma, Canary Islands, Spain.