Nonstop flight route between Fort Sill, Oklahoma, United States and Del Rio, Texas, United States:
Departure Airport:

Arrival Airport:

Distance from FSI to DRT:
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- About this route
- FSI Airport Information
- DRT Airport Information
- Facts about FSI
- Facts about DRT
- 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 DRT
- List of Nearest Airports to DRT
- Map of Furthest Airports from DRT
- List of Furthest Airports from DRT
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Del Rio International Airport (DRT), Del Rio, Texas, United States would travel a Great Circle distance of 393 miles (or 633 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 Del Rio International 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: | DRT / KDRT |
Airport Name: | Del Rio International Airport |
Location: | Del Rio, Texas, United States |
GPS Coordinates: | 29°22'27"N by 100°55'37"W |
Area Served: | Del Rio, Texas |
Operator/Owner: | Del Rio / Val Verde County |
Airport Type: | Public |
Elevation: | 1002 feet (305 meters) |
# of Runways: | 1 |
View all routes: | Routes from DRT |
More Information: | DRT Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- 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.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- Air Service/Corps units assigned to Post Field between 1919 and 1941
- 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.
- The first Army aviation at Fort Sill began on 26 July 1915 when eight Curtiss JN-3 airplanes of the 1st Aero Squadron arrived from Rockwell Field, California.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
- Post Field served as a base for flight training for the Air Service.
Facts about Del Rio International Airport (DRT):
- Del Rio International Airport (DRT) currently has only 1 runway.
- The furthest airport from Del Rio International Airport (DRT) is Sir Gaëtan Duval Airport (RRG), which is located 11,249 miles (18,103 kilometers) away in Rodrigues Island, Mauritius.
- Del Rio was also served during the late 1940s and early 1950s by Trans-Texas Airways Douglas DC-3s to El Paso, Houston, San Antonio and other Texas cities.
- The closest airport to Del Rio International Airport (DRT) is Laughlin Air Force Base (DLF), which is located only 9 miles (15 kilometers) E of DRT.
- Continental Connection had served the airport prior to the merger of Continental Airlines with United Airlines.