Nonstop flight route between Fort Sill, Oklahoma, United States and Pinellas County, Florida (near St. Petersburg and Clearwater), United States:
Departure Airport:

Arrival Airport:

Distance from FSI to PIE:
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- About this route
- FSI Airport Information
- PIE Airport Information
- Facts about FSI
- Facts about PIE
- 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 PIE
- List of Nearest Airports to PIE
- Map of Furthest Airports from PIE
- List of Furthest Airports from PIE
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and St. Pete–Clearwater International Airport (PIE), Pinellas County, Florida (near St. Petersburg and Clearwater), United States would travel a Great Circle distance of 1,037 miles (or 1,668 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 St. Pete–Clearwater 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: | PIE / KPIE |
Airport Name: | St. Pete–Clearwater International Airport |
Location: | Pinellas County, Florida (near St. Petersburg and Clearwater), United States |
GPS Coordinates: | 27°54'36"N by 82°41'15"W |
Area Served: | St. Petersburg / Clearwater, Florida |
Operator/Owner: | County of Pinellas |
Airport Type: | Public |
Elevation: | 11 feet (3 meters) |
# of Runways: | 4 |
View all routes: | Routes from PIE |
More Information: | PIE Maps & Info |
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.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- 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.
- 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.
Facts about St. Pete–Clearwater International Airport (PIE):
- The closest airport to St. Pete–Clearwater International Airport (PIE) is Clearwater Air Park (CLW), which is located only 6 miles (10 kilometers) NW of PIE.
- St. Pete–Clearwater International Airport (PIE) has 4 runways.
- Because of St. Pete–Clearwater International Airport's relatively low elevation of 11 feet, planes can take off or land at St. Pete–Clearwater 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.
- Construction of the airport at its present site started in March 1941.
- Also, the airport recently completed a US$22 million renovation, including, among other things, expanding the gate sizes, new plumbing, and building loading bridges, as the current system requires all passengers to walk across the tarmac to the gate.
- The furthest airport from St. Pete–Clearwater International Airport (PIE) is Shark Bay Airport (MJK), which is located 11,426 miles (18,388 kilometers) away in Monkey Mia, Western Australia, Australia.