Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Wilmington, Delaware, United States:
Departure Airport:

Arrival Airport:

Distance from CPS to ILG:
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- About this route
- CPS Airport Information
- ILG Airport Information
- Facts about CPS
- Facts about ILG
- Map of Nearest Airports to CPS
- List of Nearest Airports to CPS
- Map of Furthest Airports from CPS
- List of Furthest Airports from CPS
- Map of Nearest Airports to ILG
- List of Nearest Airports to ILG
- Map of Furthest Airports from ILG
- List of Furthest Airports from ILG
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Wilmington/Philadelphia Regional Airport (ILG), Wilmington, Delaware, United States would travel a Great Circle distance of 783 miles (or 1,260 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. Louis Downtown Airport and Wilmington/Philadelphia Regional Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | CPS / KCPS |
Airport Name: | St. Louis Downtown Airport |
Location: | Cahokia, Illinois (near St. Louis), United States |
GPS Coordinates: | 38°34'14"N by 90°9'21"W |
Area Served: | Greater St. Louis |
Operator/Owner: | Bi-State Development Agency |
Airport Type: | Public |
Elevation: | 413 feet (126 meters) |
# of Runways: | 3 |
View all routes: | Routes from CPS |
More Information: | CPS Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | ILG / KILG |
Airport Name: | Wilmington/Philadelphia Regional Airport |
Location: | Wilmington, Delaware, United States |
GPS Coordinates: | 39°40'42"N by 75°36'24"W |
Area Served: | Wilmington, Delaware |
Operator/Owner: | New Castle County, Delaware |
Airport Type: | Public |
Elevation: | 80 feet (24 meters) |
# of Runways: | 3 |
View all routes: | Routes from ILG |
More Information: | ILG Maps & Info |
Facts about St. Louis Downtown Airport (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 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.
- St. Louis Downtown Airport (CPS) has 3 runways.
- 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.
- The airport opened in 1929 as Curtiss-Steinberg Airport.
- 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.
Facts about Wilmington/Philadelphia Regional Airport (ILG):
- Wilmington/Philadelphia Regional Airport (ILG) has 3 runways.
- The closest airport to Wilmington/Philadelphia Regional Airport (ILG) is Philadelphia Seaplane BaseChandler Field (PSQ), which is located 21 miles (33 kilometers) NE of ILG.
- In the late 1990s the county leased the debt-stricken airport to the bi-state Delaware River and Bay Authority, operators of the Delaware Memorial Bridge, on a thirty-year lease with the provision that the DRBA may seek up to two additional thirty-year leases.
- The airport opened before World War II, named the Wilmington Airport and the Greater Wilmington Airport.
- Wilmington/Philadelphia Regional Airport is in unincorporated New Castle County, Delaware.
- Because of Wilmington/Philadelphia Regional Airport's relatively low elevation of 80 feet, planes can take off or land at Wilmington/Philadelphia 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 Wilmington/Philadelphia Regional Airport (ILG) is Margaret River Airport (MGV), which is located 11,724 miles (18,869 kilometers) away in Margaret River, Western Australia, Australia.
- On April 9, 2013 the Philadelphia Inquirer reported that Frontier Airlines would begin service July 1 from Wilmington to Chicago-Midway, Orlando, Tampa, Houston, and Denver.
- On June 29, 2006 a Delta Air Lines affiliate began flights from Atlanta's Hartsfield-Jackson Atlanta International Airport to Wilmington-Philadelphia Regional Airport, the first airline service in six years.
- Frontier Airlines, which calls the airport "Wilmington/Philadelphia", started service to the airport in July 2013.