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

Arrival Airport:

Distance from CPS to GKN:
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- About this route
- CPS Airport Information
- GKN Airport Information
- Facts about CPS
- Facts about GKN
- 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 GKN
- List of Nearest Airports to GKN
- Map of Furthest Airports from GKN
- List of Furthest Airports from GKN
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Gulkana Airport (GKN), Gulkana, Alaska, United States would travel a Great Circle distance of 2,806 miles (or 4,515 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 Gulkana 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 Gulkana 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: | GKN / PAGK |
Airport Name: | Gulkana Airport |
Location: | Gulkana, Alaska, United States |
GPS Coordinates: | 62°9'18"N by 145°27'15"W |
Area Served: | Gulkana, Alaska |
Operator/Owner: | State of Alaska DOT&PF |
Airport Type: | Public |
Elevation: | 1586 feet (483 meters) |
# of Runways: | 1 |
View all routes: | Routes from GKN |
More Information: | GKN Maps & Info |
Facts about St. Louis Downtown Airport (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.
- 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 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 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 Gulkana Airport (GKN):
- Gulkana Airport (GKN) currently has only 1 runway.
- The closest airport to Gulkana Airport (GKN) is Copper Center Airport (CZC), which is located only 16 miles (25 kilometers) SSE of GKN.
- Gulkana Airport is a state owned, public use airport located four nautical miles northeast of the central business district of Gulkana, in the Valdez-Cordova Census Area of the U.S.
- The furthest airport from Gulkana Airport (GKN) is Port Elizabeth International Airport (PLZ), which is located 10,451 miles (16,820 kilometers) away in Port Elizabeth, South Africa.
- Gulkana Airport covers an area of 1,678 acres at an elevation of 1,586 feet above mean sea level.