Nonstop flight route between Camp San Luis Obispo, California, United States and Marion, Illinois, United States:
Departure Airport:

Arrival Airport:

Distance from CSL to MWA:
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- About this route
- CSL Airport Information
- MWA Airport Information
- Facts about CSL
- Facts about MWA
- Map of Nearest Airports to CSL
- List of Nearest Airports to CSL
- Map of Furthest Airports from CSL
- List of Furthest Airports from CSL
- Map of Nearest Airports to MWA
- List of Nearest Airports to MWA
- Map of Furthest Airports from MWA
- List of Furthest Airports from MWA
About this route:
A direct, nonstop flight between O'Sullivan Army Heliport (CSL), Camp San Luis Obispo, California, United States and Williamson County Regional Airport (MWA), Marion, Illinois, United States would travel a Great Circle distance of 1,761 miles (or 2,834 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 O'Sullivan Army Heliport and Williamson County Regional Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | CSL / KCSL |
Airport Name: | O'Sullivan Army Heliport |
Location: | Camp San Luis Obispo, California, United States |
GPS Coordinates: | 35°19'33"N by 120°44'35"W |
Operator/Owner: | United States Army |
Airport Type: | Military |
Elevation: | 250 feet (76 meters) |
View all routes: | Routes from CSL |
More Information: | CSL Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | MWA / KMWA |
Airport Name: | Williamson County Regional Airport |
Location: | Marion, Illinois, United States |
GPS Coordinates: | 37°45'18"N by 89°0'39"W |
Area Served: | Marion, Illinois |
Operator/Owner: | Williamson County Airport Authority |
Airport Type: | Public |
Elevation: | 472 feet (144 meters) |
# of Runways: | 2 |
View all routes: | Routes from MWA |
More Information: | MWA Maps & Info |
Facts about O'Sullivan Army Heliport (CSL):
- The furthest airport from O'Sullivan Army Heliport (CSL) is Pierrefonds Airport (ZSE), which is located 11,442 miles (18,414 kilometers) away in Saint-Pierre, Réunion.
- The closest airport to O'Sullivan Army Heliport (CSL) is San Luis Obispo County Regional Airport (SBP), which is located only 8 miles (14 kilometers) SE of CSL.
- Because of O'Sullivan Army Heliport's relatively low elevation of 250 feet, planes can take off or land at O'Sullivan Army Heliport 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.
Facts about Williamson County Regional Airport (MWA):
- Essential Air Service service was previously operated by Great Lakes Airlines.
- Williamson County Regional Airport (MWA) has 2 runways.
- The furthest airport from Williamson County Regional Airport (MWA) is Margaret River Airport (MGV), which is located 11,065 miles (17,807 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Williamson County Regional Airport (MWA) is Southern Illinois Airport (MDH), which is located only 13 miles (21 kilometers) W of MWA.
- On November 6, 2006 Mesa Airlines announced that new service to Chicago Midway International Airport would begin in February 2007 operated by subsidiary Air Midwest, with service to Decatur Airport in Decatur, Illinois, and continuing to Chicago Midway International Airport direct.
- Because of Williamson County Regional Airport's relatively low elevation of 472 feet, planes can take off or land at Williamson County 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.