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

Arrival Airport:

Distance from RSN to CPS:
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- About this route
- RSN Airport Information
- CPS Airport Information
- Facts about RSN
- Facts about CPS
- Map of Nearest Airports to RSN
- List of Nearest Airports to RSN
- Map of Furthest Airports from RSN
- List of Furthest Airports from RSN
- Map of Nearest Airports to CPS
- List of Nearest Airports to CPS
- Map of Furthest Airports from CPS
- List of Furthest Airports from CPS
About this route:
A direct, nonstop flight between Ruston Regional Airport (RSN), Ruston, Louisiana, United States and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 440 miles (or 708 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 Ruston 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:
IATA / ICAO Codes: | RSN / KRSN |
Airport Name: | Ruston Regional Airport |
Location: | Ruston, Louisiana, United States |
GPS Coordinates: | 32°30'52"N by 92°35'17"W |
Area Served: | Ruston, Louisiana |
Operator/Owner: | City of Ruston |
Airport Type: | Public |
Elevation: | 311 feet (95 meters) |
# of Runways: | 1 |
View all routes: | Routes from RSN |
More Information: | RSN Maps & Info |
Arrival 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 |
Facts about Ruston Regional Airport (RSN):
- Opening in 1995, the facility also serves the Louisiana Tech University's Department of Professional Aviation.
- Ruston Regional Airport (RSN) currently has only 1 runway.
- The closest airport to Ruston Regional Airport (RSN) is Monroe Regional Airport (MLU), which is located 32 miles (52 kilometers) E of RSN.
- Because of Ruston Regional Airport's relatively low elevation of 311 feet, planes can take off or land at Ruston 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 Ruston Regional Airport (RSN) is Cocos (Keeling) Island Airport (CCK), which is located 10,911 miles (17,559 kilometers) away in Cocos Islands, Australia.
Facts about St. Louis Downtown Airport (CPS):
- 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.
- 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.
- Historic Hangar #2 houses the Greater Saint Louis Air & Space Museum and the airport is still home to the nation's oldest flight school, Parks College of Engineering and Aviation's Center for Aerospace Sciences, which holds CAA Flight School Certificate #1.
- 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.