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

Arrival Airport:

Distance from SLN to CPS:
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- About this route
- SLN Airport Information
- CPS Airport Information
- Facts about SLN
- Facts about CPS
- Map of Nearest Airports to SLN
- List of Nearest Airports to SLN
- Map of Furthest Airports from SLN
- List of Furthest Airports from SLN
- 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 Salina Regional Airport (SLN), Salina, Kansas, United States and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 404 miles (or 651 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 Salina 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: | SLN / KSLN |
Airport Name: | Salina Regional Airport |
Location: | Salina, Kansas, United States |
GPS Coordinates: | 38°47'26"N by 97°39'7"W |
Area Served: | Salina, Kansas |
Operator/Owner: | Salina Airport Authority |
Airport Type: | Public |
Elevation: | 1288 feet (393 meters) |
# of Runways: | 4 |
View all routes: | Routes from SLN |
More Information: | SLN 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 Salina Regional Airport (SLN):
- Salina Regional Airport covers 2,862 acres at an elevation of 1,288 feet above mean sea level.
- SeaPort Airlines is an FAA certified carrier that operates in nine states, including Arkansas, Tennessee, Kansas, Missouri, Texas, Idaho, Oregon, Washington, and Alaska.
- The furthest airport from Salina Regional Airport (SLN) is Sir Gaëtan Duval Airport (RRG), which is located 10,701 miles (17,222 kilometers) away in Rodrigues Island, Mauritius.
- The closest airport to Salina Regional Airport (SLN) is Marshall Army AirfieldMarshall Air Force Base (FRI), which is located 51 miles (82 kilometers) ENE of SLN.
- Salina Regional Airport (SLN) has 4 runways.
Facts about St. Louis Downtown Airport (CPS):
- St. Louis Downtown Airport (CPS) has 3 runways.
- 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.
- 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.
- 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.