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

Arrival Airport:

Distance from CPS to EMK:
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- About this route
- CPS Airport Information
- EMK Airport Information
- Facts about CPS
- Facts about EMK
- 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 EMK
- List of Nearest Airports to EMK
- Map of Furthest Airports from EMK
- List of Furthest Airports from EMK
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Emmonak Airport (EMK), Emmonak, Alaska, United States would travel a Great Circle distance of 3,412 miles (or 5,491 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 large distance between St. Louis Downtown Airport and Emmonak Airport, the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between St. Louis Downtown Airport and Emmonak Airport. You'll see that it will travel the same route of the red line on this map!
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: | EMK / PAEM |
Airport Names: |
|
Location: | Emmonak, Alaska, United States |
GPS Coordinates: | 62°47'9"N by 164°29'26"W |
Area Served: | Emmonak, Alaska |
Operator/Owner: | State of Alaska DOT&PF - Northern Region |
Airport Type: | Public |
Elevation: | 13 feet (4 meters) |
# of Runways: | 1 |
View all routes: | Routes from EMK |
More Information: | EMK Maps & Info |
Facts about St. Louis Downtown Airport (CPS):
- 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.
- St. Louis Downtown Airport (CPS) has 3 runways.
- 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.
- The airport opened in 1929 as Curtiss-Steinberg Airport.
- 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.
Facts about Emmonak Airport (EMK):
- The closest airport to Emmonak Airport (EMK) is Alakanuk Airport (AUK), which is located only 9 miles (15 kilometers) SW of EMK.
- Because of Emmonak Airport's relatively low elevation of 13 feet, planes can take off or land at Emmonak 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 Emmonak Airport (EMK) is Cape Town International Airport (CPT), which is located 10,441 miles (16,804 kilometers) away in Cape Town, South Africa.
- In addition to being known as "Emmonak Airport", another name for EMK is "ENM".
- Emmonak Airport (EMK) currently has only 1 runway.