Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Ust-Ilimsk, Irkutsk Oblast, Russia:
Departure Airport:

Arrival Airport:

Distance from CPS to UIK:
Share this route:
Jump to:
- About this route
- CPS Airport Information
- UIK Airport Information
- Facts about CPS
- Facts about UIK
- 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 UIK
- List of Nearest Airports to UIK
- Map of Furthest Airports from UIK
- List of Furthest Airports from UIK
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Ust-Ilimsk (UIK), Ust-Ilimsk, Irkutsk Oblast, Russia would travel a Great Circle distance of 5,715 miles (or 9,197 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 Ust-Ilimsk, 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 Ust-Ilimsk. 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: | UIK / UIBS |
Airport Name: | Ust-Ilimsk |
Location: | Ust-Ilimsk, Irkutsk Oblast, Russia |
GPS Coordinates: | 58°7'59"N by 102°33'24"E |
Airport Type: | Public |
Elevation: | 1339 feet (408 meters) |
# of Runways: | 1 |
View all routes: | Routes from UIK |
More Information: | UIK 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.
- 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.
- 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.
- 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 Ust-Ilimsk (UIK):
- The furthest airport from Ust-Ilimsk (UIK) is Ushuaia International Airport (USH), which is nearly antipodal to Ust-Ilimsk (meaning Ust-Ilimsk is almost on the exact opposite side of the Earth from Ushuaia International Airport), and is located 12,021 miles (19,346 kilometers) away in Ushuaia, Tierra del Fuego, Argentina.
- Ust-Ilimsk (UIK) currently has only 1 runway.
- The closest airport to Ust-Ilimsk (UIK) is Bratsk Airport (BTK), which is located 126 miles (203 kilometers) SSW of UIK.