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

Arrival Airport:

Distance from CPS to IGG:
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- About this route
- CPS Airport Information
- IGG Airport Information
- Facts about CPS
- Facts about IGG
- 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 IGG
- List of Nearest Airports to IGG
- Map of Furthest Airports from IGG
- List of Furthest Airports from IGG
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Igiugig Airport (IGG), Igiugig, Alaska, United States would travel a Great Circle distance of 3,148 miles (or 5,067 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 Igiugig 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 Igiugig 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: | IGG / PAIG |
Airport Name: | Igiugig Airport |
Location: | Igiugig, Alaska, United States |
GPS Coordinates: | 59°19'27"N by 155°54'6"W |
Area Served: | Igiugig, Alaska |
Operator/Owner: | State of Alaska DOT&PF - Central Region |
Airport Type: | Public |
Elevation: | 90 feet (27 meters) |
# of Runways: | 1 |
View all routes: | Routes from IGG |
More Information: | IGG Maps & Info |
Facts about St. Louis Downtown Airport (CPS):
- 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.
- 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 airport opened in 1929 as Curtiss-Steinberg Airport.
- St. Louis Downtown Airport (CPS) has 3 runways.
- 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.
Facts about Igiugig Airport (IGG):
- The furthest airport from Igiugig Airport (IGG) is George Airport (GRJ), which is located 10,686 miles (17,197 kilometers) away in George, South Africa.
- Igiugig Airport (IGG) currently has only 1 runway.
- Because of Igiugig Airport's relatively low elevation of 90 feet, planes can take off or land at Igiugig 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 Igiugig Airport (IGG) is Big Mountain Air Force Station (BMX), which is located 23 miles (37 kilometers) E of IGG.