Nonstop flight route between Fort Sill, Oklahoma, United States and Arlington County, Virginia (near Washington, D.C.), United States:
Departure Airport:

Arrival Airport:

Distance from FSI to DCA:
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- About this route
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- List of Furthest Airports from FSI
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About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Ronald Reagan Washington National Airport (DCA), Arlington County, Virginia (near Washington, D.C.), United States would travel a Great Circle distance of 1,215 miles (or 1,955 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 Ronald Reagan Washington National 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: | DCA / KDCA |
Airport Name: | Ronald Reagan Washington National Airport |
Location: | Arlington County, Virginia (near Washington, D.C.), United States |
GPS Coordinates: | 38°51'7"N by 77°2'16"W |
Area Served: | Washington Metropolitan Area |
Operator/Owner: | Metropolitan Washington Airports Authority |
Airport Type: | Public |
Elevation: | 15 feet (5 meters) |
# of Runways: | 3 |
View all routes: | Routes from DCA |
More Information: | DCA Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- 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.
- Henry Post Army Airfield was the first home of all Army Aviation Training after World War II before moving to Fort Rucker, Alabama in 1954.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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.
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
- 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.
Facts about Ronald Reagan Washington National Airport (DCA):
- The furthest airport from Ronald Reagan Washington National Airport (DCA) is Margaret River Airport (MGV), which is located 11,682 miles (18,800 kilometers) away in Margaret River, Western Australia, Australia.
- Terminals B and C opened in 1997, replacing a collection of airline-specific terminals built during the 1960s.
- On March 23, 2011, the air traffic control supervisor on duty reportedly fell asleep during the night shift.
- Despite the expansions, efforts have been made to restrict the growth of the airport.
- Reagan National Airport is subject to a federally mandated perimeter limitation and may not accommodate nonstop flights to or from cities beyond 1,250-statute-mile, with limited exceptions.
- Reagan National only has United States immigration and customs facilities for corporate jet traffic.
- Prior to the September 11 attacks in 2001, the notable security measure was the southbound approach into the airport.
- The closest airport to Ronald Reagan Washington National Airport (DCA) is Bolling Air Force Base (BOF), which is located only 1 miles (2 kilometers) ESE of DCA.
- Ronald Reagan Washington National Airport (DCA) has 3 runways.
- Because of Ronald Reagan Washington National Airport's relatively low elevation of 15 feet, planes can take off or land at Ronald Reagan Washington National 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.