Nonstop flight route between Fort Sill, Oklahoma, United States and Agana, Guam:
Departure Airport:

Arrival Airport:

Distance from FSI to UAM:
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- About this route
- FSI Airport Information
- UAM Airport Information
- Facts about FSI
- Facts about UAM
- 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 UAM
- List of Nearest Airports to UAM
- Map of Furthest Airports from UAM
- List of Furthest Airports from UAM
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Andersen Air Force Base (UAM), Agana, Guam would travel a Great Circle distance of 7,119 miles (or 11,456 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 Andersen Air Force Base, 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 Andersen Air Force Base. 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: | UAM / PGUA |
Airport Name: | Andersen Air Force Base |
Location: | Agana, Guam |
GPS Coordinates: | 13°34'51"N by 144°55'27"E |
View all routes: | Routes from UAM |
More Information: | UAM Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- 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.
- The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- 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 was the first home of all Army Aviation Training after World War II before moving to Fort Rucker, Alabama in 1954.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- Post Field served as a base for flight training for the Air Service.
- 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 Andersen Air Force Base (UAM):
- At Andersen, the wing assumed responsibility for administering two active and one semi-active bases plus an assortment of communication, weather, radar, rescue and other facilities and units including the Marianas Air Material Area, a wing size unit.
- Andersen Air Force Base's origins begin on 7 December 1941 when Guam was attacked by the armed forces of Imperial Japan in the Battle of Guam three hours after the Attack on Pearl Harbor.
- With the start of Operation Arc Light in June 1965, B-52s and KC-135s began regular bombing missions over Vietnam, and continued in that capacity until 1973, with a break between August 1970 and early 1972.
- Guam was considered as being ideal to establish air bases to launch B-29 Superfortress operations against the Japanese Home Islands.
- The closest airport to Andersen Air Force Base (UAM) is Guam International Airport (GUM), which is located only 11 miles (17 kilometers) SW of UAM.
- The furthest airport from Andersen Air Force Base (UAM) is Salvador-Deputado Luís Eduardo Magalhães International Airport (2 de Julho) (SSA), which is nearly antipodal to Andersen Air Force Base (meaning Andersen Air Force Base is almost on the exact opposite side of the Earth from Salvador-Deputado Luís Eduardo Magalhães International Airport (2 de Julho)), and is located 12,214 miles (19,656 kilometers) away in Salvador, Bahia, Brazil.
- Flying out of Guam, S/Sgt Henry E Erwin of the 29th Bombardment Group was awarded the Medal of Honor for action that saved his B-29 during a mission over Koriyama, Japan, on 12 April 1945.