Nonstop flight route between Fort Sill, Oklahoma, United States and Idiofa, Democratic Republic of the Congo:
Departure Airport:

Arrival Airport:

Distance from FSI to IDF:
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- About this route
- FSI Airport Information
- IDF Airport Information
- Facts about FSI
- Facts about IDF
- 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 IDF
- List of Nearest Airports to IDF
- Map of Furthest Airports from IDF
- List of Furthest Airports from IDF
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Idiofa Airport (IDF), Idiofa, Democratic Republic of the Congo would travel a Great Circle distance of 7,997 miles (or 12,870 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 Idiofa 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 Idiofa 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: | IDF / FZCB |
Airport Name: | Idiofa Airport |
Location: | Idiofa, Democratic Republic of the Congo |
GPS Coordinates: | 5°0'0"S by 19°36'0"E |
Airport Type: | Public |
Elevation: | 2299 feet (701 meters) |
View all routes: | Routes from IDF |
More Information: | IDF Maps & Info |
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.
- 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.
- Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
- 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.
- 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.
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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.
Facts about Idiofa Airport (IDF):
- The furthest airport from Idiofa Airport (IDF) is Cassidy International Airport (CXI), which is nearly antipodal to Idiofa Airport (meaning Idiofa Airport is almost on the exact opposite side of the Earth from Cassidy International Airport), and is located 12,141 miles (19,539 kilometers) away in Christmas Island, Kiribati.
- The closest airport to Idiofa Airport (IDF) is Kikwit Airport (KKW), which is located 56 miles (90 kilometers) W of IDF.