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

About this route:

A direct, nonstop flight between Chicago Rockford International Airport (RFD), Rockford, Illinois, United States and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 257 miles (or 413 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 Chicago Rockford International 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 Chicago Rockford International Airport (RFD):

• The closest airport to Chicago Rockford International Airport (RFD) is Southern Wisconsin Regional Airport (JVL), which is located 30 miles (47 kilometers) N of RFD.
• RFD has two cargo aprons in use.
• Because of Chicago Rockford International Airport's relatively low elevation of 742 feet, planes can take off or land at Chicago Rockford 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.
• Located in between the two runways, the smaller south cargo apron is home to one of the two FBOs at the airport.
• The larger north cargo apron is next to the main terminal.
• Chicago Rockford International Airport (RFD) has 2 runways.
• The furthest airport from Chicago Rockford International Airport (RFD) is Margaret River Airport (MGV), which is located 11,008 miles (17,716 kilometers) away in Margaret River, Western Australia, Australia.
• In an effort to capitalize on the airport's location from downtown Chicago and about 30 miles from the outermost Chicago suburbs), its name was changed to the Northwest Chicagoland Regional Airport at Rockford in the early 2000s.

Facts about St. Louis Downtown Airport (CPS):

• The airport opened in 1929 as Curtiss-Steinberg Airport.
• 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 airport closed in 1959 and reopened six years later as Bi-State Parks Airport.
• 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.
• 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.
• Taken over by the United States Army Air Forces on 1 August 1939 as a basic pilot training airfield.
• St. Louis Downtown Airport (CPS) has 3 runways.
• 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.