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

Arrival Airport:

Distance from MWH to CPS:
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- About this route
- MWH Airport Information
- CPS Airport Information
- Facts about MWH
- Facts about CPS
- Map of Nearest Airports to MWH
- List of Nearest Airports to MWH
- Map of Furthest Airports from MWH
- List of Furthest Airports from MWH
- 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 Grant County International Airport (MWH), Moses Lake, Washington, United States and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 1,581 miles (or 2,544 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 Grant County International 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: | MWH / KMWH |
Airport Name: | Grant County International Airport |
Location: | Moses Lake, Washington, United States |
GPS Coordinates: | 47°12'30"N by 119°19'9"W |
Area Served: | Moses Lake, Washington |
Operator/Owner: | Port of Moses Lake |
Airport Type: | Public |
Elevation: | 1189 feet (362 meters) |
# of Runways: | 5 |
View all routes: | Routes from MWH |
More Information: | MWH 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 Grant County International Airport (MWH):
- Grant County International Airport (MWH) has 5 runways.
- The main campus for Big Bend Community College is also located on the grounds of the airport.
- Grant County International Airport was an alternate landing site for the NASA Space Shuttle.
- The closest airport to Grant County International Airport (MWH) is Ephrata Municipal Airport (EPH), which is located only 12 miles (19 kilometers) NW of MWH.
- The furthest airport from Grant County International Airport (MWH) is Tôlanaro Airport (FTU), which is located 10,730 miles (17,268 kilometers) away in Tôlanaro, Madagascar.
Facts about St. Louis Downtown Airport (CPS):
- The airport opened in 1929 as Curtiss-Steinberg Airport.
- 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.
- 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 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.