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

Arrival Airport:

Distance from PIE to ALN:
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- About this route
- PIE Airport Information
- ALN Airport Information
- Facts about PIE
- Facts about ALN
- Map of Nearest Airports to PIE
- List of Nearest Airports to PIE
- Map of Furthest Airports from PIE
- List of Furthest Airports from PIE
- Map of Nearest Airports to ALN
- List of Nearest Airports to ALN
- Map of Furthest Airports from ALN
- List of Furthest Airports from ALN
About this route:
A direct, nonstop flight between St. Pete–Clearwater International Airport (PIE), Pinellas County, Florida (near St. Petersburg and Clearwater), United States and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 869 miles (or 1,398 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 St. Pete–Clearwater International Airport and St. Louis Regional Airport, the route shown on this map most likely still appears to be a straight line.
Departure 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 |
Arrival Airport Information:
IATA / ICAO Codes: | ALN / KALN |
Airport Name: | St. Louis Regional Airport |
Location: | Alton, Illinois, United States |
GPS Coordinates: | 38°53'25"N by 90°2'45"W |
Area Served: | Alton, Illinois |
Operator/Owner: | St. Louis Regional |
Airport Type: | Public |
Elevation: | 544 feet (166 meters) |
# of Runways: | 2 |
View all routes: | Routes from ALN |
More Information: | ALN Maps & Info |
Facts about St. Pete–Clearwater International Airport (PIE):
- After World War II, the airport property was returned to Pinellas County by the U.S.
- The airport uses "Tampa Bay The Easy Way" as an advertising slogan and Fly2PIE in reference to its three-letter IATA and FAA codes.
- 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.
- The airport includes a 24-hour airport rescue and fire-fighting department, facilities, operations, engineering, security, and administrative personnel.
- 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.
- Along with scheduled commercial airlines, United Parcel Service, Air Cargo, and General/Corporate Aviation are also major activities.
- 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.
Facts about St. Louis Regional Airport (ALN):
- Civic Memorial Airport opened in 1946 and received its current name in 1984.
- The 2,250 acres airfield sits at 544 ft MSL.
- St. Louis Regional Airport (ALN) has 2 runways.
- The closest airport to St. Louis Regional Airport (ALN) is Lambert–St. Louis International Airport (STL), which is located only 20 miles (32 kilometers) WSW of ALN.
- The furthest airport from St. Louis Regional Airport (ALN) is Margaret River Airport (MGV), which is located 11,002 miles (17,706 kilometers) away in Margaret River, Western Australia, Australia.
- Because of St. Louis Regional Airport's relatively low elevation of 544 feet, planes can take off or land at St. Louis Regional 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.