Nonstop flight route between Fort Sill, Oklahoma, United States and Britton, South Dakota, United States:
Departure Airport:

Arrival Airport:

Distance from FSI to TTO:
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- About this route
- FSI Airport Information
- TTO Airport Information
- Facts about FSI
- Facts about TTO
- 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 TTO
- List of Nearest Airports to TTO
- Map of Furthest Airports from TTO
- List of Furthest Airports from TTO
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Britton Municipal Airport (TTO), Britton, South Dakota, United States would travel a Great Circle distance of 772 miles (or 1,243 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 Britton Municipal 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: | TTO / KBTN |
Airport Names: |
|
Location: | Britton, South Dakota, United States |
GPS Coordinates: | 45°48'53"N by 97°44'34"W |
Area Served: | Britton, South Dakota |
Operator/Owner: | City of Britton |
Airport Type: | Public |
Elevation: | 1318 feet (402 meters) |
# of Runways: | 2 |
View all routes: | Routes from TTO |
More Information: | TTO Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- 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.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
- The Fort Sill Army Radar Approach Control is the Army's Second busiest Air Traffic Control Facility, providing Radar Approach Control service to Henry Post Army Air Field, Lawton/Fort Sill Regional Airport, Duncan/Haliburton Airport and many smaller airports in the area.
- 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.
Facts about Britton Municipal Airport (TTO):
- The closest airport to Britton Municipal Airport (TTO) is Aberdeen Regional AirportAberdeen Army Airfield (ABR), which is located 41 miles (67 kilometers) SW of TTO.
- The furthest airport from Britton Municipal Airport (TTO) is Margaret River Airport (MGV), which is located 10,529 miles (16,945 kilometers) away in Margaret River, Western Australia, Australia.
- In addition to being known as "Britton Municipal Airport", another name for TTO is "BTN".
- Britton Municipal Airport (TTO) has 2 runways.