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

Arrival Airport:

Distance from HXX to FSI:
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- About this route
- HXX Airport Information
- FSI Airport Information
- Facts about HXX
- Facts about FSI
- Map of Nearest Airports to HXX
- List of Nearest Airports to HXX
- Map of Furthest Airports from HXX
- List of Furthest Airports from HXX
- 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 Hay Airport (HXX), Hay, New South Wales, Australia and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 8,904 miles (or 14,329 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 Hay 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 Hay 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: | HXX / YHAY |
Airport Name: | Hay Airport |
Location: | Hay, New South Wales, Australia |
GPS Coordinates: | 34°31'53"S by 144°49'46"E |
Area Served: | Hay, New South Wales, Australia |
Operator/Owner: | Hay Shire Council |
Airport Type: | Public |
Elevation: | 305 feet (93 meters) |
# of Runways: | 2 |
View all routes: | Routes from HXX |
More Information: | HXX 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 Hay Airport (HXX):
- Because of Hay Airport's relatively low elevation of 305 feet, planes can take off or land at Hay 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.
- Hay Airport (HXX) has 2 runways.
- The furthest airport from Hay Airport (HXX) is Flores Airport (FLW), which is nearly antipodal to Hay Airport (meaning Hay Airport is almost on the exact opposite side of the Earth from Flores Airport), and is located 12,030 miles (19,360 kilometers) away in Flores Island, Azores, Portugal.
- The closest airport to Hay Airport (HXX) is Deniliquin Airport (DNQ), which is located 71 miles (115 kilometers) S of HXX.
Facts about Henry Post Army Airfield (FSI):
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
- Fort Sill has embarked on a new plan to support the museum in providing a more dynamic learning experience for the 200,000 military and civilian personnel who visit each year.
- 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 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 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.
- 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.
- Post Field served as a base for flight training for the Air Service.