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

Arrival Airport:

Distance from CPS to OMK:
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- About this route
- CPS Airport Information
- OMK Airport Information
- Facts about CPS
- Facts about OMK
- 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 OMK
- List of Nearest Airports to OMK
- Map of Furthest Airports from OMK
- List of Furthest Airports from OMK
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Omak Airport (OMK), Omak, Washington, United States would travel a Great Circle distance of 1,609 miles (or 2,589 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 Omak 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: | OMK / KOMK |
Airport Names: |
|
Location: | Omak, Washington, United States |
GPS Coordinates: | 48°27'51"N by 119°31'5"W |
Area Served: | Omak, Washington, United States |
Airport Type: | Public |
Elevation: | 1305 feet (398 meters) |
# of Runways: | 1 |
View all routes: | Routes from OMK |
More Information: | OMK Maps & Info |
Facts about St. Louis Downtown Airport (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 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 airport closed in 1959 and reopened six years later as Bi-State Parks Airport.
- Taken over by the United States Army Air Forces on 1 August 1939 as a basic pilot training airfield.
- 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 Omak Airport (OMK):
- Food and snacks are available at this airport's terminal, as well as a medical facility, accommodation areas, administrative offices and hangar buildings maintained by the Omak City Council.
- In addition to being known as "Omak Airport", other names for OMK include "Omak Municipal Airport" and "Omak City Airport".
- Omak Airport (OMK) currently has only 1 runway.
- The closest airport to Omak Airport (OMK) is Grand Forks Airport (ZGF), which is located 63 miles (101 kilometers) NE of OMK.
- The Omak Airport, which covers an area of 153 acres of city-owned property and 325 acres overall at an elevation of 1,305 feet, has a 4,667 by 150 feet runway aligned 17–35, making it the third largest runway in Central Washington.
- The furthest airport from Omak Airport (OMK) is Tôlanaro Airport (FTU), which is located 10,660 miles (17,155 kilometers) away in Tôlanaro, Madagascar.
- By December 1943, bomber aircraft commonly used the flight strip.
- The Omak Airport's revenue resources include fuel sales, landing fees and rental fees set by the Omak City Council.
- Historical demographics for the Omak Airport have been released by the FAA.
- A private business instructor offers flying lessons at the airfield, while Omak Aircraft Services is based on site and offers airframe and powerplant repairs.