Nonstop flight route between Fort Sill, Oklahoma, United States and Adrian, Michigan, United States:
Departure Airport:

Arrival Airport:

Distance from FSI to ADG:
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- About this route
- FSI Airport Information
- ADG Airport Information
- Facts about FSI
- Facts about ADG
- 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 ADG
- List of Nearest Airports to ADG
- Map of Furthest Airports from ADG
- List of Furthest Airports from ADG
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Lenawee County Airport (ADG), Adrian, Michigan, United States would travel a Great Circle distance of 922 miles (or 1,483 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 Lenawee 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: | ADG / KADG |
Airport Name: | Lenawee County Airport |
Location: | Adrian, Michigan, United States |
GPS Coordinates: | 41°52'4"N by 84°4'37"W |
Operator/Owner: | Lenawee County |
Airport Type: | Public |
Elevation: | 798 feet (243 meters) |
# of Runways: | 2 |
View all routes: | Routes from ADG |
More Information: | ADG Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- 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.
- 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.
- 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.
Facts about Lenawee County Airport (ADG):
- The Lenawee County Airport is the closest airport to Michigan International Speedway, the Irish Hills, and Michigan State University's Hidden Lake Gardens.
- Because of Lenawee County Airport's relatively low elevation of 798 feet, planes can take off or land at Lenawee County Airport 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.
- The furthest airport from Lenawee County Airport (ADG) is Margaret River Airport (MGV), which is located 11,260 miles (18,121 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Lenawee County Airport (ADG) is Toledo Express Airport (TOL), which is located 24 miles (38 kilometers) SE of ADG.
- **Lenawee County CVB - Local Information**
- For the 12-month period ending December 31, 2003, the airport had 51,200 aircraft operations, an average of 140 per day, all of which were general aviation.
- Lenawee County Airport (ADG) has 2 runways.