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

Arrival Airport:

Distance from FSI to BRO:
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- About this route
- FSI Airport Information
- BRO Airport Information
- Facts about FSI
- Facts about BRO
- 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 BRO
- List of Nearest Airports to BRO
- Map of Furthest Airports from BRO
- List of Furthest Airports from BRO
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Brownsville/South Padre Island International Airport (BRO), Brownsville, Texas, United States would travel a Great Circle distance of 607 miles (or 977 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 Brownsville/South Padre Island 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: | BRO / KBRO |
Airport Names: |
|
Location: | Brownsville, Texas, United States |
GPS Coordinates: | 25°54'24"N by 97°25'32"W |
Area Served: | Brownsville / South Padre Island, Texas |
Operator/Owner: | City of Brownsville |
Airport Type: | Public |
Elevation: | 22 feet (7 meters) |
# of Runways: | 3 |
View all routes: | Routes from BRO |
More Information: | BRO Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- 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.
- 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.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- 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.
- Air Service/Corps units assigned to Post Field between 1919 and 1941
- 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.
Facts about Brownsville/South Padre Island International Airport (BRO):
- During World War II the airport was used by the United States Army Air Forces, although the Air Corps had signed a contract with Pan American Airways in 1940 for the training of aircraft mechanics at the airport.
- Various aircraft types, including Bombardier CRJ-200 and Embraer ERJ 145, are used by American Eagle and United Express in Brownsville.
- In addition to being known as "Brownsville/South Padre Island International Airport", another name for BRO is "(former Brownsville Army Airfield)".
- Because of Brownsville/South Padre Island International Airport's relatively low elevation of 22 feet, planes can take off or land at Brownsville/South Padre Island International 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 airport is the largest air cargo handling airport in the Rio Grande Valley.
- Brownsville/South Padre Island International Airport is a city owned, public use airport located four nautical miles east of the central business district of Brownsville, a city in Cameron County, Texas, United States.
- The furthest airport from Brownsville/South Padre Island International Airport (BRO) is Sir Gaëtan Duval Airport (RRG), which is located 11,143 miles (17,933 kilometers) away in Rodrigues Island, Mauritius.
- The Brownsville/South Padre Island International Airport is the first airport in Texas to offer flight status notification via text-messaging through its website.
- Brownsville/South Padre Island International Airport (BRO) has 3 runways.
- The closest airport to Brownsville/South Padre Island International Airport (BRO) is General Servando Canales International Airport (MAM), which is located only 11 miles (18 kilometers) SSW of BRO.