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

Arrival Airport:

Distance from CPS to ONY:
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- About this route
- CPS Airport Information
- ONY Airport Information
- Facts about CPS
- Facts about ONY
- 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 ONY
- List of Nearest Airports to ONY
- Map of Furthest Airports from ONY
- List of Furthest Airports from ONY
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Olney Municipal Airport (ONY), Olney, Texas, United States would travel a Great Circle distance of 600 miles (or 966 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 Olney Municipal 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: | ONY / KONY |
Airport Name: | Olney Municipal Airport |
Location: | Olney, Texas, United States |
GPS Coordinates: | 33°22'5"N by 98°45'29"W |
Elevation: | 0 feet (0 meters) |
View all routes: | Routes from ONY |
More Information: | ONY Maps & Info |
Facts about St. Louis Downtown Airport (CPS):
- The airport closed in 1959 and reopened six years later as Bi-State Parks Airport.
- 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 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.
- St. Louis Downtown Airport (CPS) has 3 runways.
- 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.
Facts about Olney Municipal Airport (ONY):
- Because of Olney Municipal Airport's relatively low elevation of 0 feet, planes can take off or land at Olney Municipal 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.
- In the city the population was spread out with 25.9% under the age of 18, 7.9% from 18 to 24, 24.0% from 25 to 44, 20.3% from 45 to 64, and 22.0% who were 65 years of age or older.
- The climate in this area is characterized by hot, humid summers and generally mild to cool winters.
- The closest airport to Olney Municipal Airport (ONY) is Kickapoo Downtown Airport (KIP), which is located 37 miles (60 kilometers) NNE of ONY.
- Olney is served by the Olney Independent School District.
- The furthest airport from Olney Municipal Airport (ONY) is Sir Gaëtan Duval Airport (RRG), which is located 10,990 miles (17,687 kilometers) away in Rodrigues Island, Mauritius.
- Located on the Olney school campus at 807 W.