Nonstop flight route between Philadelphia, Pennsylvania, United States and Alton, Illinois, United States:
Departure Airport:

Arrival Airport:

Distance from PHL to ALN:
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- About this route
- PHL Airport Information
- ALN Airport Information
- Facts about PHL
- Facts about ALN
- Map of Nearest Airports to PHL
- List of Nearest Airports to PHL
- Map of Furthest Airports from PHL
- List of Furthest Airports from PHL
- 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 Philadelphia International Airport (PHL), Philadelphia, Pennsylvania, United States and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 793 miles (or 1,276 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 Philadelphia 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: | PHL / KPHL |
Airport Name: | Philadelphia International Airport |
Location: | Philadelphia, Pennsylvania, United States |
GPS Coordinates: | 39°52'18"N by 75°14'27"W |
Area Served: | Delaware Valley |
Operator/Owner: | City of Philadelphia |
Airport Type: | Public |
Elevation: | 36 feet (11 meters) |
# of Runways: | 4 |
View all routes: | Routes from PHL |
More Information: | PHL 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 Philadelphia International Airport (PHL):
- The closest airport to Philadelphia International Airport (PHL) is Philadelphia Seaplane BaseChandler Field (PSQ), which is located only 3 miles (5 kilometers) WSW of PHL.
- In 1947 and 1950 the airport had runways 4, 9, 12 and 17, all of 5400 ft or less.
- Because of Philadelphia International Airport's relatively low elevation of 36 feet, planes can take off or land at Philadelphia 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.
- Rental cars are available through a number of companies.
- The furthest airport from Philadelphia International Airport (PHL) is Margaret River Airport (MGV), which is located 11,734 miles (18,884 kilometers) away in Margaret River, Western Australia, Australia.
- Terminal B/C modernization was completed in 1970, Terminal D opened in 1973 and Terminal E in 1977.
- Philadelphia International Airport, often referred to just by its airport code PHL, is a major airport in Philadelphia, Pennsylvania, United States, and is the largest airport in the Delaware Valley region and in the state.
- Philadelphia International Airport (PHL) has 4 runways.
Facts about St. Louis Regional Airport (ALN):
- 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.
- Its operations are paid for by an airport taxation district created in 1946, which collects taxes from property owners in the Madison County townships of Alton, Wood River, Foster and Fort Russell.
- 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.
- St. Louis Regional Airport (ALN) has 2 runways.
- In the spring of 2004 the airport was at the center of a scandal.
- Today a fair amount of air traffic and the Direct TV blimp comes for Cardinals playoffs, as Lambert's airport cannot take the blimp.
- 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.