Nonstop flight route between Grovedale, Victoria, Australia and Fort Sill, Oklahoma, United States:
Departure Airport:

Arrival Airport:

Distance from GEX to FSI:
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- About this route
- GEX Airport Information
- FSI Airport Information
- Facts about GEX
- Facts about FSI
- Map of Nearest Airports to GEX
- List of Nearest Airports to GEX
- Map of Furthest Airports from GEX
- List of Furthest Airports from GEX
- 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 Geelong Airport (GEX), Grovedale, Victoria, Australia and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 9,008 miles (or 14,498 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 Geelong 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 Geelong 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: | GEX / YGLG |
Airport Name: | Geelong Airport |
Location: | Grovedale, Victoria, Australia |
GPS Coordinates: | 38°13'31"S by 144°19'59"E |
Area Served: | Geelong |
Airport Type: | Public |
Elevation: | 140 feet (43 meters) |
View all routes: | Routes from GEX |
More Information: | GEX 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 Geelong Airport (GEX):
- The furthest airport from Geelong Airport (GEX) is Flores Airport (FLW), which is nearly antipodal to Geelong Airport (meaning Geelong Airport is almost on the exact opposite side of the Earth from Flores Airport), and is located 12,178 miles (19,599 kilometers) away in Flores Island, Azores, Portugal.
- Because of Geelong Airport's relatively low elevation of 140 feet, planes can take off or land at Geelong 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 Geelong Airport (GEX) is Avalon Airport (AVV), which is located only 16 miles (25 kilometers) NW of GEX.
Facts about Henry Post Army Airfield (FSI):
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- Post Field served as a base for flight training for the Air Service.
- With the end of World War I, in October 1919 Post Field was deactivated as an active duty airfield in accordance with sharply reduced military budgets, and a small caretaker unit was assigned to the facility for administrative reasons to support the balloon school/company.
- 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.
- 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.
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
- Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.