Nonstop flight route between Crestview, Florida, United States and Fort Sill, Oklahoma, United States:
Departure Airport:

Arrival Airport:

Distance from EGI to FSI:
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- About this route
- EGI Airport Information
- FSI Airport Information
- Facts about EGI
- Facts about FSI
- Map of Nearest Airports to EGI
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- Map of Furthest Airports from EGI
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About this route:
A direct, nonstop flight between Duke FieldEglin Air Force Auxiliary Field #3 (EGI), Crestview, Florida, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 744 miles (or 1,197 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 relatively short distance between Duke FieldEglin Air Force Auxiliary Field #3 and Henry Post Army Airfield, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | EGI / KEGI |
Airport Names: |
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Location: | Crestview, Florida, United States |
GPS Coordinates: | 30°39'1"N by 86°31'22"W |
View all routes: | Routes from EGI |
More Information: | EGI 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 Duke FieldEglin Air Force Auxiliary Field #3 (EGI):
- In addition to being known as "Duke FieldEglin Air Force Auxiliary Field #3", another name for EGI is "Duke Field".
- The closest airport to Duke FieldEglin Air Force Auxiliary Field #3 (EGI) is Bob Sikes Airport (CEW), which is located only 9 miles (14 kilometers) N of EGI.
- The furthest airport from Duke FieldEglin Air Force Auxiliary Field #3 (EGI) is Shark Bay Airport (MJK), which is located 11,172 miles (17,980 kilometers) away in Monkey Mia, Western Australia, Australia.
- In 1992, the 919 SOG was re-designated as the 919th Special Operations Wing, the designation it currently retains today.
- Duke Field, also known as Eglin AFB Auxiliary Field #3, is a military airport located three miles south of the central business district of Crestview, in Okaloosa County, Florida, United States
- A large hump-backed steel hangar, the "Butler Hangar", 160 feet X 130 feet, transported from Trinidad, was erected at Auxiliary Field 3 between 1 April and ~10 July 1950, by personnel of Company 'C', 806th Aviation Engineering Battalion, under Captain Samuel M.
Facts about Henry Post Army Airfield (FSI):
- 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.
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
- 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 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.
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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.