Nonstop flight route between Fort Sill, Oklahoma, United States and Boca Chica Key, Florida, United States:
Departure Airport:

Arrival Airport:

Distance from FSI to NQX:
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- About this route
- FSI Airport Information
- NQX Airport Information
- Facts about FSI
- Facts about NQX
- 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 NQX
- List of Nearest Airports to NQX
- Map of Furthest Airports from NQX
- List of Furthest Airports from NQX
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and NAS Key West (NQX), Boca Chica Key, Florida, United States would travel a Great Circle distance of 1,219 miles (or 1,961 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 Henry Post Army Airfield and NAS Key West, the route shown on this map most likely still appears to be a straight line.
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: | NQX / KNQX |
Airport Names: |
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Location: | Boca Chica Key, Florida, United States |
GPS Coordinates: | 24°34'32"N by 81°41'20"W |
Operator/Owner: | United States Navy |
Airport Type: | Military: Naval Air Station |
Elevation: | 6 feet (2 meters) |
# of Runways: | 3 |
View all routes: | Routes from NQX |
More Information: | NQX Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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.
- 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.
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
- 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.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
- 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.
Facts about NAS Key West (NQX):
- Due to its superb flying weather, NAS Key West has also hosted several permanent detachments of the fighter and strike fighter Fleet Replacement Squadrons at NAS Oceana, Virginia.
- On 22 September of that year, the base's log book recorded the first naval flight ever made from Key West – a Curtiss N-9 seaplane flown by U.S.
- The closest airport to NAS Key West (NQX) is Key West International Airport (EYW), which is located only 5 miles (7 kilometers) WSW of NQX.
- The furthest airport from NAS Key West (NQX) is Cocos (Keeling) Island Airport (CCK), which is located 11,575 miles (18,629 kilometers) away in Cocos Islands, Australia.
- NAS Key West (NQX) has 3 runways.
- After World War I, the base was decommissioned and its personnel were transferred or released.
- The nation's southernmost Naval Base proved to be an ideal year-round training facility with rapid access to the open sea lanes and ideal flying conditions for Naval Aviation.
- In addition to being known as "NAS Key West", other names for NQX include "Naval Air Station Key West" and "NQX[1]".
- The seaplane base was designated as a Naval Air Station Key West on 15 December 1940 and served as an operating and training base for fleet aircraft squadrons, to include seaplane, land-based aircraft, carrier-based aircraft and lighter-than-air blimp squadrons.
- Because of NAS Key West's relatively low elevation of 6 feet, planes can take off or land at NAS Key West 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.
- By 1943, German submarines were operating so near Key West that they were sinking allied ships within sight of land.