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

Arrival Airport:

Distance from BRO to FSI:
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- About this route
- BRO Airport Information
- FSI Airport Information
- Facts about BRO
- Facts about FSI
- Map of Nearest Airports to BRO
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- Map of Furthest Airports from BRO
- List of Furthest Airports from BRO
- Map of Nearest Airports to FSI
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- List of Furthest Airports from FSI
About this route:
A direct, nonstop flight between Brownsville/South Padre Island International Airport (BRO), Brownsville, Texas, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, 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 Brownsville/South Padre Island International Airport and Henry Post Army Airfield, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | BRO / KBRO |
Airport Names: |
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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 |
Arrival 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 |
Facts about Brownsville/South Padre Island International Airport (BRO):
- 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.
- Pan American Airways and World-Wide Consolidated Logistics, Inc.
- 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.
- In addition to flight status text-messaging notification, the site also features current fares to popular routes, including Houston, Atlanta, Toronto, Minneapolis/St.
- Brownsville/South Padre Island International Airport (BRO) has 3 runways.
- For the first year of the United States' involvement in combat of the war, Pan American continued to operate the airport, providing training to Ferrying Command pilots and ground mechanics assigned to the 18th Transport Transition Training Detachment.
- 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.
Facts about Henry Post Army Airfield (FSI):
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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.
- 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.
- 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 field was named in honor of pioneer aviator 2d Lieutenant Henry Post.