Nonstop flight route between Fort Sill, Oklahoma, United States and Washington, Pennsylvania, United States:
Departure Airport:

Arrival Airport:

Distance from FSI to WSG:
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- About this route
- FSI Airport Information
- WSG Airport Information
- Facts about FSI
- Facts about WSG
- 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 WSG
- List of Nearest Airports to WSG
- Map of Furthest Airports from WSG
- List of Furthest Airports from WSG
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Washington County Airport (WSG), Washington, Pennsylvania, United States would travel a Great Circle distance of 1,062 miles (or 1,709 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 Washington County Airport, 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: | WSG / KAFJ |
Airport Names: |
|
Location: | Washington, Pennsylvania, United States |
GPS Coordinates: | 40°8'11"N by 80°17'25"W |
Operator/Owner: | Washington County |
Airport Type: | Public |
Elevation: | 1184 feet (361 meters) |
# of Runways: | 1 |
View all routes: | Routes from WSG |
More Information: | WSG Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- 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.
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
- Post Field served as a base for flight training for the Air Service.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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 Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
Facts about Washington County Airport (WSG):
- The closest airport to Washington County Airport (WSG) is Greene County Airport (WAY), which is located only 18 miles (29 kilometers) SSE of WSG.
- Washington County Airport (WSG) currently has only 1 runway.
- In addition to being known as "Washington County Airport", another name for WSG is "AFJ".
- The furthest airport from Washington County Airport (WSG) is Margaret River Airport (MGV), which is located 11,488 miles (18,487 kilometers) away in Margaret River, Western Australia, Australia.
- The airport covers 365 acres and has 37 T-hangars, seven corporate hangars and seven businesses that employ about thirty people.