Nonstop flight route between Tanacross, Alaska, United States and Fort Sill, Oklahoma, United States:
Departure Airport:

Arrival Airport:

Distance from TSG to FSI:
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- About this route
- TSG Airport Information
- FSI Airport Information
- Facts about TSG
- Facts about FSI
- Map of Nearest Airports to TSG
- List of Nearest Airports to TSG
- Map of Furthest Airports from TSG
- List of Furthest Airports from TSG
- 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 Tanacross Airport (TSG), Tanacross, Alaska, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 2,744 miles (or 4,416 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 Tanacross 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 Tanacross 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: | TSG / |
Airport Names: |
|
Location: | Tanacross, Alaska, United States |
GPS Coordinates: | 63°22'27"N by 143°20'8"W |
Area Served: | Tanacross, Alaska |
Operator/Owner: | Bureau of Land Management |
Airport Type: | Public |
Elevation: | 1549 feet (472 meters) |
# of Runways: | 2 |
View all routes: | Routes from TSG |
More Information: | TSG 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 Tanacross Airport (TSG):
- Tanacross Airport (TSG) has 2 runways.
- This general aviation airport is located 166 miles southeast of Fairbanks, Alaska.
- Constructed 1943, activated September 20 by Air Transport Command as Station #16, Alaskan Wing, later 1464th AAFBU.
- In addition to being known as "Tanacross Airport", another name for TSG is "Tanacross Air Base".
- The closest airport to Tanacross Airport (TSG) is Tok Airport (TKJ), which is located only 11 miles (18 kilometers) ESE of TSG.
- The furthest airport from Tanacross Airport (TSG) is Port Elizabeth International Airport (PLZ), which is located 10,351 miles (16,659 kilometers) away in Port Elizabeth, South Africa.
Facts about Henry Post Army Airfield (FSI):
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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.
- 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 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.
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- Air Service/Corps units assigned to Post Field between 1919 and 1941
- 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 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.