Nonstop flight route between Palo Alto, California, United States and Fort Sill, Oklahoma, United States:
Departure Airport:

Arrival Airport:

Distance from PAO to FSI:
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- About this route
- PAO Airport Information
- FSI Airport Information
- Facts about PAO
- Facts about FSI
- Map of Nearest Airports to PAO
- List of Nearest Airports to PAO
- Map of Furthest Airports from PAO
- List of Furthest Airports from PAO
- Map of Nearest Airports to FSI
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- List of Furthest Airports from FSI
About this route:
A direct, nonstop flight between Palo Alto Airport of Santa Clara County (PAO), Palo Alto, California, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 1,335 miles (or 2,149 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 Palo Alto Airport of Santa Clara County 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: | PAO / KPAO |
Airport Name: | Palo Alto Airport of Santa Clara County |
Location: | Palo Alto, California, United States |
GPS Coordinates: | 37°27'39"N by 122°6'53"W |
Operator/Owner: | County of Santa Clara |
Airport Type: | Public |
Elevation: | 4 feet (1 meters) |
# of Runways: | 1 |
View all routes: | Routes from PAO |
More Information: | PAO 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 Palo Alto Airport of Santa Clara County (PAO):
- The furthest airport from Palo Alto Airport of Santa Clara County (PAO) is Tôlanaro Airport (FTU), which is located 11,365 miles (18,289 kilometers) away in Tôlanaro, Madagascar.
- The VOR approach is almost impossible to get from Air Traffic Control if the aircraft is GPS-equipped, because of the conflict with airline traffic in San Jose International Airport.
- The closest airport to Palo Alto Airport of Santa Clara County (PAO) is Moffett Federal Airfield (NUQ), which is located only 5 miles (8 kilometers) SE of PAO.
- Palo Alto Airport of Santa Clara County (PAO) currently has only 1 runway.
- Because of Palo Alto Airport of Santa Clara County's relatively low elevation of 4 feet, planes can take off or land at Palo Alto Airport of Santa Clara County 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.
- First time pilots should familiarize themselves with the complex SF Bay Area airspace, especially the overlying SFO Class B and the abutting SJC Class C airspace.
Facts about Henry Post Army Airfield (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.
- 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.
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- 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 field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- 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 Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.