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

Arrival Airport:

Distance from CPS to RMP:
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- About this route
- CPS Airport Information
- RMP Airport Information
- Facts about CPS
- Facts about RMP
- 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 RMP
- List of Nearest Airports to RMP
- Map of Furthest Airports from RMP
- List of Furthest Airports from RMP
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Rampart Airport (RMP), Rampart, Alaska, United States would travel a Great Circle distance of 2,982 miles (or 4,799 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 Rampart 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 Rampart 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: | RMP / |
Airport Name: | Rampart Airport |
Location: | Rampart, Alaska, United States |
GPS Coordinates: | 65°30'28"N by 150°8'26"W |
Area Served: | Rampart, Alaska |
Operator/Owner: | Alaska DOT&PF - Northern Region |
Airport Type: | Public |
Elevation: | 307 feet (94 meters) |
# of Runways: | 1 |
View all routes: | Routes from RMP |
More Information: | RMP Maps & Info |
Facts about St. Louis Downtown Airport (CPS):
- 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 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 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 Rampart Airport (RMP):
- Rampart Airport is a state owned, public use airport located one nautical mile east of the central business district of Rampart, in the Yukon-Koyukuk Census Area of the U.S.
- The closest airport to Rampart Airport (RMP) is Five Mile Airport (FMC), which is located 30 miles (49 kilometers) NNE of RMP.
- Rampart Airport (RMP) currently has only 1 runway.
- The furthest airport from Rampart Airport (RMP) is Port Elizabeth International Airport (PLZ), which is located 10,252 miles (16,498 kilometers) away in Port Elizabeth, South Africa.
- Because of Rampart Airport's relatively low elevation of 307 feet, planes can take off or land at Rampart 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.