Nonstop flight route between Reading, Pennsylvania, United States and Cahokia, Illinois (near St. Louis), United States:

About this route:

A direct, nonstop flight between Reading Regional Airport (RDG), Reading, Pennsylvania, United States and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 766 miles (or 1,233 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 Reading Regional Airport and St. Louis Downtown Airport, the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

Arrival Airport Information:

Facts about Reading Regional Airport (RDG):

• Reading Regional Airport (RDG) has 2 runways.
• In the 1950s Reading Air Services sponsored the National Maintenance & Operations Meeting, better known as the Reading Airshow, and later Reading Aerofest.
• Opened as a civil airport in April 1938, Reading Airport was used by the United States Army Air Forces First Air Force as a training airfield during World War II.
• The closest airport to Reading Regional Airport (RDG) is Heritage Field (PTW), which is located 24 miles (38 kilometers) ESE of RDG.
• Because of Reading Regional Airport's relatively low elevation of 344 feet, planes can take off or land at Reading 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.
• The furthest airport from Reading Regional Airport (RDG) is Margaret River Airport (MGV), which is located 11,683 miles (18,802 kilometers) away in Margaret River, Western Australia, Australia.
• In addition to being known as "Reading Regional Airport", another name for RDG is "Carl A. Spaatz FieldReading Army Airfield".
• In the 1950s TWA, Capital and Colonial stopped at Reading.

Facts about St. Louis Downtown Airport (CPS):

• Because of St. Louis Downtown Airport's relatively low elevation of 413 feet, planes can take off or land at St. Louis Downtown 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.
• St. Louis Downtown Airport (CPS) has 3 runways.
• The closest airport to St. Louis Downtown Airport (CPS) is Lambert–St. Louis International Airport (STL), which is located only 16 miles (27 kilometers) NW of CPS.
• The two survivors out of the airport's original four hangars, Hangar 1 and Hangar 2, are listed on the National Register of Historic Places.
• The furthest airport from St. Louis Downtown Airport (CPS) is Margaret River Airport (MGV), which is located 10,998 miles (17,700 kilometers) away in Margaret River, Western Australia, Australia.
• Taken over by the United States Army Air Forces on 1 August 1939 as a basic pilot training airfield.