Nonstop flight route between Fort Sill, Oklahoma, United States and Newton, Iowa, United States:
Departure Airport:

Arrival Airport:

Distance from FSI to TNU:
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- About this route
- FSI Airport Information
- TNU Airport Information
- Facts about FSI
- Facts about TNU
- 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 TNU
- List of Nearest Airports to TNU
- Map of Furthest Airports from TNU
- List of Furthest Airports from TNU
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Newton Municipal Airport (TNU), Newton, Iowa, United States would travel a Great Circle distance of 566 miles (or 911 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 Newton 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: | TNU / KTNU |
Airport Name: | Newton Municipal Airport |
Location: | Newton, Iowa, United States |
GPS Coordinates: | 41°40'27"N by 93°1'18"W |
Area Served: | Newton, Iowa |
Operator/Owner: | City of Newton |
Airport Type: | Public |
Elevation: | 953 feet (290 meters) |
# of Runways: | 1 |
View all routes: | Routes from TNU |
More Information: | TNU Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- 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.
- 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 (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.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- Henry Post Army Airfield is a military use airport located at Fort Sill in Comanche County, Oklahoma, United States.
- Fort Sill has embarked on a new plan to support the museum in providing a more dynamic learning experience for the 200,000 military and civilian personnel who visit each year.
Facts about Newton Municipal Airport (TNU):
- Newton Municipal Airport (TNU) currently has only 1 runway.
- Because of Newton Municipal Airport's relatively low elevation of 953 feet, planes can take off or land at Newton Municipal 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 closest airport to Newton Municipal Airport (TNU) is Ankeny Regional Airport (IKV), which is located 28 miles (45 kilometers) W of TNU.
- The furthest airport from Newton Municipal Airport (TNU) is Margaret River Airport (MGV), which is located 10,820 miles (17,412 kilometers) away in Margaret River, Western Australia, Australia.